JP3195764B2 - Dishwasher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning step of cleaning an object to be cleaned in a cleaning space, a rinsing step of rinsing the object to be cleaned with rinsing water, and a drying step of drying the object to be cleaned. Control means for controlling the operation to be executed, heating means for heating the rinse water by hot water heated and supplied by a heat source device, and a temperature detection means for detecting the temperature of the rinse water are provided, The control means, in the rinsing step, while controlling the operation of the heating means to heat the rinse water,
The present invention relates to a dishwasher configured to terminate the rinsing step and shift to the drying step when the temperature of the rinsing water reaches an upper limit set temperature based on the detection information of the temperature detecting means.

[0002]

2. Description of the Related Art In a dishwasher having the above-described structure, rinse water is heated in a rinsing step after washing, and in a subsequent drying step, hot water on the surface of a dish or the like is easily evaporated. By heating the rinsing water by using hot water supplied by being heated by a heat source device, for example, an electric heater, etc. As compared with the case of using rinsing water, rinsing water can be heated while avoiding an increase in ambient temperature.

Conventionally, in a dishwasher having the above configuration, in a rinsing step using hot water, the temperature of the rinsing water reaches an upper limit set temperature, or a preset time set after starting the rinsing by hot water rinsing. Is passed, the rinsing step is terminated and the drying step is started, and the setting time is set to a sufficiently long time for the temperature of the rinsing water to reach the upper limit setting temperature even when the outside air temperature is extremely low. Was set.

[0004]

However, in the dishwasher having the above structure, the heating means for heating the rinsing water uses hot water heated and supplied by the heat source device as a heat source. However, there is still room for improvement.

In other words, the heat source unit generally supplies hot water to each of a plurality of terminal devices in an intermittent manner. For example, when a plurality of terminal devices are operated simultaneously, When the total amount of required heat of each terminal device exceeds the amount of heat that can be supplied by the heat source device, the hot water supplied to the heating means, which is one of the plurality of terminal devices, has a temperature lower than a target temperature and is rinsed. There is a possibility that the temperature of the water cannot be raised to the upper limit set temperature.

[0006] When the heat source unit is a water heater that heats water by burning a burner and supplies heated water to a plurality of terminal devices, only the heating means of the plurality of terminal devices operates. When the temperature of the rinsing water rises, the required combustion amount of the heating means (heat load of the terminal equipment) decreases with the rise of the temperature of the rinsing water, and the heating means may become less than the minimum operating capacity. There is a possibility that the temperature of the rinsing water may not reach the upper limit set temperature due to a stop state (burner stop state).

If the temperature of the rinsing water cannot reach the upper limit set temperature, the rinsing step is continuously performed until the preset set time elapses, and the processing time required for rinsing is reduced. In addition to being unnecessarily long, the temperature of the rinsing water does not rise to the upper limit set temperature, and thus the drying efficiency in the subsequent drying step is disadvantageously reduced.

The present invention has been made in view of such a point, and an object of the present invention is to eliminate the need for processing time of a rinsing step even when the heating ability of a heating means by a heat source device fluctuates. It is another object of the present invention to provide a dishwasher capable of suppressing a long drying time and preventing a decrease in drying efficiency even in a subsequent drying step to obtain a good drying effect.

[0009]

In order to achieve this object, according to the first aspect of the present invention, the operation of the heating means is controlled so as to heat the rinsing water in the rinsing step,
And, when the temperature of the rinsing water reaches the upper limit set temperature, the control means for controlling to end the rinsing step and shift to the drying step, in the rinsing step, after starting heating the rinsing water by the heating means. Even if the detection value of the temperature detecting means for detecting the temperature of the rinsing water is lower than the upper limit set temperature, if the condition for ending the rinsing step is satisfied, the rinsing step is ended and the process shifts to the drying step. Therefore, not only when the temperature of the rinsing water rises to the appropriate upper limit set temperature, but also when the ability of the heat source device with respect to the heating means is reduced by some factor, the condition for ending the rinsing step When the condition is satisfied, the process shifts to the drying process, and the processing time required for the rinsing process is prevented from being unnecessarily long. Then, the drying time in the drying step is changed based on the detected value of the temperature detecting means at the end of the rinsing step. For example, if the detected value of the temperature detecting means is low, the drying time is lengthened, and the detected value is changed. If it is high, by making it relatively short, it is possible to obtain as good a drying effect as possible while shortening the time required for rinsing as described above.

According to the second aspect of the present invention, after the control means starts heating of the rinsing water by the heating means in the rinsing step, the detection value of the temperature detecting means changes the upper limit after a lapse of a set time. When the temperature reaches the set temperature lower than the set temperature, it is determined that the condition of the end of the rinsing step is satisfied.Therefore, by appropriately selecting the set time and the set temperature, the heating unit is not affected by any factor. Even if the capacity of the heat source unit is reduced, if the capacity of the heat source unit is restored before the set time elapses, the temperature of the rinsing water can be increased to the upper limit set temperature, and the setting can be performed. If the capacity of the heat source unit does not recover before the time elapses, the rinsing step is terminated and the drying step is started, and the processing time required for the rinsing step can be reduced. That.

According to the third aspect of the present invention, after the control means starts heating the rinsing water by the heating means in the rinsing step, the detected value of the temperature detecting means becomes the upper limit after a lapse of a set time. If it does not reach the set temperature lower than the set temperature, it will activate the notification means,
If the temperature of the rinsing water in the hot water rinsing is too low, the user can be notified of that fact, and for example, post-processing such as performing hot water rinsing again after the heat source unit has recovered its capacity can be performed.

According to the fourth aspect of the present invention, since the heating means heats the inside of the washing space in the drying step, the heating means for rinsing water heating and the heating and drying can be shared, In addition, since the drying step includes a heating drying step using the heating unit and the drying fan and a blast drying step using only the drying fan, a rational drying process is performed by appropriately using the heating drying and the blast drying. In addition, the control means changes the drying time of at least one of the heating drying step and the air drying step, thereby enabling a drying process corresponding to the situation at that time.

According to the fifth aspect of the present invention, since the heat source unit is constituted by a water heater for supplying hot water to another place different from the heating means, a dishwasher is used. Hot water can be used at another location when it is in use, making it easy to use, and, as described above, the water heater supplies hot water to both the dishwasher and another location. Also, it is possible to avoid inconveniences such as unnecessarily lengthening the time of the rinsing step of the dishwasher.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a dishwasher according to the present invention will be described with reference to the drawings. 2 and 3 show a dishwasher according to the present invention. In this dish washer, a substantially rectangular box-shaped main body case 1 having an open front is provided with a door 2 which can swing open and close around a horizontal axis at a lower end portion. A cleaning tank 3 for cleaning an object to be cleaned is provided. The cleaning tank 3 is configured such that the front surface is widely opened as an entrance / exit D for an object to be cleaned, and when the door 2 is closed, the cleaning tank 3 is hermetically closed by the inner side surface of the door 2.

A support rail 4 is provided on the lateral side of the closed washing space K formed by the washing tank 3.
As shown in the figure, the object to be washed such as tableware is stored in the upper and lower two net baskets 5a and 5b, which are detachably slidably supported by the support rails 4, and are placed below the lower net basket 5a. The lower ejection nozzle 6a provided on the side, the middle ejection nozzle 6b provided below the upper mesh basket 5b, and the upper ejection nozzle 6c provided above the upper mesh basket 5b. The washing water is ejected from the large number of ejection holes 7 to wash the object to be washed.

In this dishwasher, a water supply passage 8 for supplying washing water to the washing tank 3, a discharge passage 9 for discharging washing water in the washing tank 3 to the outside, and a water stored in the washing tank 3. Each of the transport paths 10 for transporting the cleaning water to each of the cleaning nozzles 6a, 6b, 6c is provided in a state of being connected to the cleaning tank 3. The water supply channel 8 is connected to the inside of the washing tank 3 in a state of being opened near the middle position in the vertical direction of the washing tank 3, and a manual opening / closing valve 11 which is set to be open during operation is provided in the middle thereof. When the manual opening / closing valve 11 and the water supply valve 12 are both opened, water is supplied into the cleaning tank 3 by the water supply pressure of a water supply source such as water supply. The discharge passage 9 sucks washing water from an opening 14 formed in the bottom of the washing tank 3 by a drain pump 13 provided in the middle thereof, and a backflow provided on a lateral side of the washing tank 3. After passing through the vertical path portion 9a for prevention, the washing water is discharged to the outside from the discharge portion 9b.

The dishwasher is provided with a water level sensor 15 for detecting whether or not the water level stored in the washing tank 3 when the water is supplied into the washing tank 3 has reached a set water level. Is turned on, and when it is detected that the set water level has been reached, the water supply valve 12 is closed and the water supply is automatically stopped.

The transfer path 10 includes a suction transfer path portion 10a for sucking cleaning water stored in the cleaning tank 3 from the opening 14 by the operation of a circulation pump 16 provided in the middle thereof. A first transport path portion 10b for forcibly transporting the cleaning water from the lower side of the circulation pump 16 toward the lower ejection nozzle 6a, and forcibly supplying the cleaning water from the lower side of the circulation pump 16 to the upper ejection nozzle 6c. And a second transport path portion 10c to be transported.

The lower ejection nozzle 6a is rotatably supported around the longitudinal axis at a longitudinally intermediate portion with respect to the bottom surface of the washing tank 3, and the middle ejection nozzle 6b is provided with a mesh basket 5b. In contrast, it is configured to be rotatable around the vertical axis. In addition, each ejection nozzle 6a, 6b, 6
c is configured so that each ejection hole 7 ejects washing water obliquely upward and in the opposite direction to each other, and the lower ejection nozzle 6a
And the middle ejection nozzle 6b are configured so that the ejection nozzle itself rotates at a low speed around the longitudinal axis due to the reaction of the ejection power of the washing water, so that the washing water is sprayed to every corner of the object to be washed. The cleaning is performed effectively. still,
Upper ejection nozzle 6c is configured to jet the cleaning water at a location stationary relative cleaning tank 3, supplied from the washing water the water supply unit 6b ₁ ejected from the upper spray nozzle 6c for the medium ejection nozzle 6b It is configured to be.

As shown in FIG. 4, a filter F is provided at the opening 14 at the bottom of the washing tank 3 for receiving dust such as residual vegetables generated by the washing action. The filter F has a coarse mesh and a fine mesh. The washing water passes through the fine filter F after the coarse filter F at the time of the cleaning operation. The flow of water is reversed so that dust adhering to the inner surface of the filter F having a fine mesh is removed and discharged. The filter F is placed and supported along the inner peripheral edge of the opening 14 and is configured to be easily removable.

The bottom of the washing tank 3 is heated by heating the washing water supplied to the washing tank 3 in the washing step and heating the air inside the washing tank 3 in the drying step after the washing water is discharged. A heater 17 is provided as heating drying means for heating and drying the cleaning object. This heater 1
7 is constituted by a hot water heater 17 for heating and drying the hot water heated by a gas combustion type external heat source device 18 having a burner through a hot water supply passage 19 to heat and dry the hot water heater. It is configured to supply hot water to a terminal device other than the hot water heater 17. Further, a blower 26 is provided as a drying fan for supplying drying air into the cleaning tank 3 and blowing and drying the object to be cleaned during or after the heating and drying by the hot water heater 17. .

As shown in FIG. 4, the hot water heater 17 is disposed in a bent state at the bottom of the cleaning tank 3 over a wide area, and is constituted by a pipe through which hot water can flow. As shown in FIG. 5, the hot water supplied from the heat source unit 18 through the hot water supply path 19 flows through the hot water heater 17 and then circulates through the return path 20 to the heat source unit 18. , An electromagnetic open / close type hot water valve 22 is provided. The hot water supplied from the heat source unit 18 is configured to be constant at a temperature of about 80 ° C. By opening the hot water valve 22, the hot water heater 1
7, the hot water supply to the hot water heater 17 is stopped by closing the hot water valve 22.

Inside the washing tank 3, a temperature sensor 24 as temperature detecting means for detecting the temperature inside the washing tank 3 and a door 2 are provided.
A door switch 25 is provided for detecting the opening and closing of the rinsing process. The rinsing process is terminated based on the detection information of the temperature sensor 24, and the process shifts to the drying process.

A control unit 27 using a microcomputer as control means for controlling the operation of each unit as described above, and an operation unit 28 as command means for instructing the control device 27 with control information are provided. . Operation unit 28
Is provided on the upper outer surface side of the door 2 as shown in FIG.
A power switch 29 for instructing power on / off, a start switch 30 for instructing the start of a cleaning operation, a manually operated finishing agent input switch 31 for selecting whether or not to input a finishing agent such as a rinse, and changing and setting a drying time. A time setting switch 32, a notification buzzer 33 as notification means, a notification lamp 34, and the like are provided.

The control operation of the control device will be described with reference to the flowchart of FIG. Prior to starting the cleaning operation, the door 2 is manually opened to store dishes and the like as objects to be cleaned in the cleaning basket 3 in the net baskets 5a and 5b, and a dedicated detergent is supplied to the cleaning tank 3. Supply it inside. Then, when the door 2 is closed, the door switch 25 is turned ON, and the door 2 is set in an operable state (step 1). When the power switch 29 is turned on, a cleaning course is selected by the course switch, and further, when a finish such as a rinse is to be fed, the finish feed switch 31 is turned on, and finally, the start switch 30 is turned on. When operated, the operation is started (steps 2 and 3), and the washing water in the washing tank 3 is discharged (step 4). That is, when the drain pump 13 is activated and the water level sensor 15 is turned off, the drain pump 1
3 stops. Thereafter, the cleaning step, the rinsing step, and the drying step are sequentially performed.

Next, the process proceeds to the washing step. Referring to the flowchart of FIG. 6, the water supply valve 12 is opened to supply the washing water into the washing tank 3 (step 5), and the water level sensor 15 is turned on. When it is detected that the set water level has been reached, the water supply valve 12 is closed. Then, the circulating pump 16 is operated, and hot water of about 80 ° C. is passed through the hot water heater 17 (steps 6 and 7). The detection value of the temperature sensor 24,
That is, the operation of the hot water valve 22 is controlled to adjust the hot water supply state to the hot water heater 17 so that the temperature in the cleaning tank 3 is maintained at about 60 ° C. (step 8). Then, when the set time (about 13 minutes) elapses, the operation of the circulation pump 16 is stopped to stop hot water from flowing into the hot water heater 17, and the washing water is discharged (steps 9, 10, and 11). In this cleaning process, the cleaning water jetted in a spray form from the jetting holes 7 comes into contact with the hot water heater 17 to be efficiently heated, and the cleaning is performed with the hot water. Further, as described above, the lower and middle ejection nozzles 6a and 6b rotate around the vertical axis with the ejection power of the washing water so that the corners of the object to be washed are surely washed. Has become.

Next, the process proceeds to a rinsing step, and FIGS.
When the water supply operation as described above is executed, the circulating pump 16 is operated for a set time (about 1 minute) to perform rinsing, and thereafter, the operation of discharging the washing water is performed in three steps. It is executed repeatedly (steps 12 to 17). The number of times of rinsing is not limited to three. When the three rinsing operations are completed, water is supplied again and the fourth rinsing with warm water is performed. That is, after the above-described water supply operation is performed, the hot water is passed through the hot water heater 17, the operation of the circulation pump 16 is started, and the rinsing with hot water is performed (steps 18, 19, and 20).

If the finishing agent supply switch 31 is turned on when the third rinsing operation is completed, the finishing agent is to be supplied to the user by the notification buzzer 33 or the notification lamp 34. The user is notified of this fact and the finishing agent is supplied manually. At this time, if necessary, the filter F may be removed to remove the removed material such as the residual vegetables.

If the detection value Tx of the temperature sensor 24 becomes equal to or higher than the upper limit set temperature (for example, 65 ° C.) during the hot water rinsing as described above, the hot water supply to the hot water heater 17 is stopped and the setting is stopped. After a period of time (for example, one minute),
The operation of the circulation pump 16 is stopped, and the rinsing water is discharged (steps 21 to 25), the rinsing process is completed, and the process shifts to the drying process in the first drying mode.

After the set time (for example, 18 minutes) has elapsed from the start of the hot water rinsing without the detected value Tx of the temperature sensor 24 exceeding the upper limit set temperature (step 26),
When the detected value Tx of the temperature sensor 24 becomes equal to or higher than a first set temperature (for example, 62 ° C.) which is a first condition for ending the rinsing, the operation of the circulation pump 16 is stopped to stop hot water from flowing into the hot water heater 17, and the Water is discharged (steps 27 and 2).
8, 29), the rinsing step is completed, and the process proceeds to the drying step in the second drying mode.

After the set time (for example, 40 minutes) has elapsed from the start of hot water rinsing (step 30) without the detected value Tx of the temperature sensor 24 being equal to or higher than the first set temperature, the detected value Tx of the temperature sensor 24 is rinsed. If the temperature is equal to or higher than a second set temperature (for example, 56 ° C.) which is a second condition for terminating the process, the operation of the circulation pump 16 is stopped to stop hot water from flowing into the hot water heater 17, and the rinse water is discharged (step 31). , 3
3, 34), the rinsing step is completed, and the process proceeds to the drying step in the third drying mode. Further, when the detection value Tx of the temperature sensor 24 has not reached the second set temperature, the notification buzzer 33 is activated, the notification lamp 34 is turned on, and the notification is activated to inform the user of an abnormality such as heating means in the rinsing process. (Step 3)
2).

In the drying step, there are different drying modes for different drying times, and the first drying mode, the second drying mode, and the third drying mode are set in order from the shorter drying time. In the drying step, in each of the drying modes, the hot-water heater 17 is operated while the hot-water heater 17 is passed, and the blower 26 is operated to dry the object to be cleaned, and the hot-water heater 17 is stopped. And a blow drying step of drying only the object to be cleaned by operating only the blower 26.

The drying step in the first drying mode will be described with reference to the flowchart of FIG.
At the same time, the hot water supply to the cleaning tank 3 is adjusted by controlling the hot water supply so that the detected value Tx of the temperature sensor 24 is maintained at about 70 ° C.
The inside air is heated to about 70 ° C., and the object to be cleaned is heated and dried (steps 35 and 36). When a set time (for example, 20 minutes) elapses after the start of the heating / drying operation, hot water supply to the hot water heater 17 is stopped, and the heating / drying process ends (steps 37 and 38), and only the blower 26 is operated. Is performed. Then, when the first set time for blast drying (for example, 30 minutes) elapses,
The operation of the blower 26 is stopped, the blow drying step is completed, and the drying step is completed (steps 39 and 40). Thereafter, after waiting for 10 minutes to cool the object to be cleaned, the power switch 29 is turned off and the operation is completed.

The drying process in the second drying mode is shown in FIG.
This will be described with reference to the flowchart of FIG.
7 and the blower 26 is operated to adjust the heating state by hot water so that the detection value Tx of the temperature sensor 24 is maintained at about 70 ° C.
The inside air is heated to about 70 ° C., and the object to be cleaned is heated and dried (steps 41 and 42). When a set time (for example, 20 minutes) elapses after the start of the heating and drying operation, hot water supply to the hot water heater 17 is stopped and the heating and drying process ends (steps 43 and 44), and only the blower 26 operates. Is performed. Then, when the second set time for blast drying (for example, 40 minutes) elapses,
The operation of the blower 26 is stopped, the blow drying step is completed, and the drying step is completed (steps 45 and 46). Thereafter, after waiting for 10 minutes to cool the object to be cleaned, the power switch 29 is turned off and the operation is completed.

The drying step in the third drying mode is shown in FIG.
This will be described with reference to the flowchart of FIG.
7 and the blower 26 is operated to adjust the heating state by hot water so that the detection value Tx of the temperature sensor 24 is maintained at about 70 ° C.
The air inside is heated to about 70 ° C., and the object to be cleaned is heated and dried (steps 47 and 48). When a set time (for example, 20 minutes) elapses after the start of the heating / drying operation, hot water supply to the hot water heater 17 is stopped and the heating / drying process is completed (steps 49 and 50), and only the blower 26 is operated. Is performed. Then, when the third set time for the blast drying (for example, 50 minutes) has elapsed,
The operation of the blower 26 is stopped, the blow drying step is finished, and the drying step is finished (steps 51 and 52). Thereafter, after waiting for 10 minutes to cool the object to be cleaned, the power switch 29 is turned off and the operation is completed.

As described above, even if the detection value of the temperature sensor 24 is lower than the upper limit set value, when the condition for terminating the rinsing step is satisfied, the rinsing step is terminated, and the process proceeds to the drying step. Since the drying step is performed by changing the drying time based on the detection value of the temperature sensor 24 at the end of the step, a good drying effect can be obtained even in the subsequent drying step without making the time of the rinsing step longer than necessary. Can be obtained.

[Another Embodiment] (1) In the above embodiment, the conditions for ending the rinsing step are set to the first condition and the second condition. However, the conditions for ending the rinsing step are set to one. Or three or more.

(2) In the above embodiment, the drying time in the drying step is changed by changing only the blast drying time based on the value detected by the temperature sensor 24 at the end of the rinsing step. , Temperature sensor 2 at the end of the rinsing process
Based on the detection value of 4, only the heating and drying time is changed,
The drying time in the drying step may be changed, and both the heating drying time and the blast drying time are changed based on the detection value of the temperature sensor 24 at the end of the rinsing step to change the drying time. The drying time may be changed. Further, in the heating and drying, the configuration in which the blower 26 is operated while passing hot water through the hot water heater 17 has been described.
The heating and drying can be performed only by passing hot water through the hot water heater without operating the blower 26.

(3) In the above embodiment, the heat source unit 18 is configured to supply the hot water to the hot water heater 17 and the terminal equipment other than the hot water heater 17. It may be configured to supply hot water to the water.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a dishwasher.

FIG. 2 is a perspective view of a dishwasher.

FIG. 3 is a perspective view of a dishwasher.

FIG. 4 is a diagram showing an arrangement state of a hot water heater.

FIG. 5 is a flowchart of a control operation.

FIG. 6 is a flowchart of a cleaning process.

FIG. 7 is a flowchart of a rinsing step.

FIG. 8 is a flowchart of a rinsing step.

FIG. 9 is a flowchart of a drying process in a first drying mode.

FIG. 10 is a flowchart of a drying process in a second drying mode.

FIG. 11 is a flowchart of a drying process in a third drying mode.

[Explanation of symbols]

 Reference Signs List 17 heating means 18 heat source unit 24 temperature detecting means 26 drying fan 27 control means 33,34 notification means K washing space

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoko Saso 19-18 Sakuradacho, Atsuta-ku, Nagoya City, Aichi Prefecture Inside Toho Gas Co., Ltd. (72) Inventor Junichi Kitamura 1-15-1 Oka, Minami-shi, Minato-ku, Osaka-shi, Osaka No. Harman Co., Ltd. (72) Genro Nishimaru, Inventor 1-15-1 Oka, Minami-shi, Minato-ku, Osaka, Osaka Prefecture Harman Co., Ltd. (72) Hiroaki Doi 1-1-52, Oka, Minami-shi, Minato-ku, Osaka, Osaka (72) Inventor Kenji Marusasa 1-152 Oka, Minami-shi, Minato-ku, Osaka-shi, Osaka Harman-uchi (56) References JP-A-9-24013 (JP, A) JP-A-7- 265251 (JP, A) Japanese Utility Model Hei 3-95871 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A47L 15/46 A47L 15/48

Claims (5)

(57) [Claims] An operation is performed to execute a cleaning step of cleaning an object to be cleaned, a rinsing step of rinsing the object to be cleaned with rinsing water, and a drying step of drying the object to be cleaned in a cleaning space. Control means, a heating means for heating the rinse water by hot water heated and supplied by a heat source device, and a temperature detection means for detecting the temperature of the rinse water are provided, the control means, In the rinsing step, while controlling the operation of the heating means so as to heat the rinsing water, based on the detection information of the temperature detecting means, when the temperature of the rinsing water reaches the upper limit set temperature, the rinsing step ends. And a dishwasher configured to shift to the drying step, wherein the control unit performs the rinsing by the heating unit in the rinsing step. After starting the heating, even if the detected value of the temperature detecting means is a temperature lower than the upper limit set temperature, if the condition of the end of the rinsing step is satisfied, the rinsing step is ended and the drying step is performed. A dishwasher configured to be shifted and configured to change a drying time in the drying step based on a value detected by the temperature detecting unit at the end of the rinsing step. 2. The control unit, in the rinsing step, after the heating unit starts heating the rinsing water, a detection value of the temperature detection unit is lower than the upper limit set temperature after a lapse of a set time. When the set temperature is reached,
The dishwasher according to claim 1, wherein the dishwasher is configured to determine that a condition for terminating the rinsing step is satisfied. 3. The control unit, in the rinsing step, after the heating unit starts heating the rinsing water, a detection value of the temperature detection unit is lower than the upper limit set temperature after a lapse of a set time. 2. The system according to claim 1, wherein the notification unit is activated when the set temperature is not reached.
Or the dishwasher according to 2. 4. The heating means is configured to heat the inside of the washing space in the drying step, and the drying step includes a heating and drying step using the heating means and a drying fan, and a heating and drying step using only the drying fan. The tableware according to any one of claims 1 to 3, comprising a blow drying step, wherein the control means is configured to change a drying time of at least one of the heating drying step and the blow drying step. washing machine. 5. The dishwasher according to claim 1, wherein the heat source device is constituted by a water heater that supplies hot water to another portion different from the heating device.