Question about Jackson JP-24B Built-in Dishwasher

3 Answers

Unable to reach min washing temp of 150 and rinsing temp of 180 on a model Jackson/Alco model B24

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  • gartishenko Jun 19, 2009

    Thanks for your solution. I was wondering if you have a picture or describe the location of the Thermostat

  • gartishenko Jun 24, 2009

    Thanks I replaced the thermostats for washer and rinse, Unfortunately, I will need to replace the rinse thermometer, since it only goes up to 140( looks like a real doozy). I am able now to reach 168 degrees on the washer thermometer, but I have a question ? I was given a heat patch from the Health inspector and I stuck it on a plate and ran a manual mode for awhile to reach 168 degrees. Now the patch is turning black on 160 and grey on the 170, but not the 180 needed for rinse. Is there a rinse mode on this model, there seems to be no dial or switch for it? Not sure of operation maybe.

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REPLACE THE HEATING ELEMENT IN THE BOTTOM OF THE WASHER BASIN, IT IS THE MOST COMMON FAIL POINT FOR THIS KIND OF PROBLEM.

Posted on Jun 24, 2009

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  • Expert
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Hello,

The thermostat can be found from underneath the dishwasher, most models have them mounted on the bottom of the tank. Some are screwed in and some models are clipped in,

Your on the right track with the thermostat being the problem.

I hope this helps.

Please reply if you need more help.

Regards,
ajs_biz

Posted on Jun 19, 2009

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  • Master
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Hi,

Please check this articler:

http://www.naturalhandyman.com/iip/infwaterheater/infwhadjust.html

A domestic dishwasher is provided with a control system having circuitry including timer switch means adapted to insure automatic wash water at a normal set temperature for all cycles with the user having an option to preselect an elevated wash water temperature. During wash periods, power for the heater is provided through timer switch means connected through a first thermostat whereby if the water in the chamber is below its set temperature, the first thermostat will energize a heater to provide auxiliary heat to the wash water. The timer switch means is operative to stop the timer motor until the water is heated to said set temperature. Once the water reaches the minimum set temperature, or if the water supply is initially above said minimum setting the first thermostat will switch, deenergizing the heater. If an extra hot wash option is selected by an Options Selector Switch, and the water temperature is below a second thermostat's elevated set point, the timer switch means will stop the timer motor providing extended heating until the second thermostat closes upon the water reaching the elevated temperature.

Need to replace the thermostat.

Thanks for contacting Fixya.

Posted on Jun 18, 2009

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Posted on Jan 02, 2017

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1 Answer

My dishwasher has power to it but the heat dry option is lit and it wont start ant idea what to do?


Hello

Do you have any of the extra functions selected, such as "Hi Temp Rinse" etc?
The selector switch has a selection for Hi-Temp Wash; the switch is in parallel with a thermostat mounted on the bottom of the tub and with a contact in the timer. The
selector switch, temp assure thermostat, and the temp boost thermostat are all in series with the timer motor. Both thermostats are normally open thermostats. When
the timer reaches the end of the second wash cycle, the contact in the timer supplying power to run the timer motor will open. At which time, if the selector switch for the Hi-Temp Wash has been selected, power to run the timer motor must come through the thermostats. The temperature of the water in the tub must rise to 137° ±5° F for the thermostat to close and the timer motor to advance. If the water temperature is below 137° ± 5° F, the timer will pause until the heating element raises the temperature of the water in the tub and allow the thermostat to close.

Hi-Temp Rinse
If the selector switch was a selection for a Hi-Temp rinse, the switch is in parallel with a thermostat mounted in the tub, and the contact in the timer, the same as the Hi-Temp wash. The operation for the Hi-Temp rinse will be the same as for the Hi-Temp wash with the exception, on some models, the temperature of the water in the tub will be 150° ± 5° F for the thermostat to close to give a sanitizing rinse.


What do we learn from this? That you either have a bad heater or a bad thermostat. Check the heater for continuity with our OHM meter.

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Door latch.
Open and close the door to make sure the door latch is securely fastened

Hi-Temp Wash, Hi-Temp Rinse, or Sanitize options.
Some models have options that may require a water heating delay, such as Hi-Temp Wash, Hi-Temp Rinse, or Sanitize. Additional time may be required to heat the water to the proper temperature. The dishwasher will continue to circulate water during this heating delay but the timer will not advance until the proper temperature is reached

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1 Answer

Rinse temp too low, first it comes up to 180 degrees and then drops to wash tank temperature, WHY?


Hello,
The rinse temp only reaches 180 degrees for a couple of seconds towards the end of the cycle. This will sanitize all warewash and meets most health code regulations. The rinse water temp will drop rapidly as it is incorporated in to the machine and sprayed on the dishes.
Regards

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1 Answer

Can you tell me what temperature the dishwashers reach during each part of cycle--Dishwasher model is WDF902SA Food authority have asked this of me


Hello,
The wash temperature for a high temperature commercial dishwasher should be around 140F AND 160F. The final rinse temperature should be 180F to meet health code regulations. The final rinse temperature is reached during the end of the cycle for a few seconds. If the machine is a low temperature dishwasher the wash temperature and rinse temp will be around 140 F to 160 F. The sanitizing of your warewash will be done by the use of chlorine or iodine in the low temp application.
Regards

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2)check the heater contactor is getting switched off interminently(if it is not getting off problem on thermostat)

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Tank temp


check to see if your element is scaled up or your element may be damaged

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what temp is it washing at. washing should not be the problem. This machine is designed to rinse at 180 degrees + to sanitize dishes. The machine could be converted to a chemical sanitize, it would use bleach in the rinse water instead of 180 degree water to sanitize.

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WHAT IS THE CORRECT WASH TEMP FOR THIS MACHINE?


between 150 and 165 is good for wash. between 180 and 195 is good for rinse.

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2 Answers

The correct way to start the wash cycle


we have just purchased a Fagor dishwasher also - the instruction manual is worthless.

in regards to the 2 thin tubes, we just inserted them in the gallon jugs that the soap/rinse agents comes in and it works fine. just make sure the clear tube without the label goes in the rinse agent and the labeled tube goes in the soap jug. we did drill a hole in the top cap of the jugs and pushed the line thru and that helped keeping the tubes in the jugs and minimized the mess if the jugs fell over.

in regards to the temperature problem, we found that running it thru a couple of cycles before you start the actual dishes helped get the water temperature up faster. it seems to like to start with normal tap hot water first, so the 1st couple of cycles get the cold water out of the line.


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