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Frigidaire Timer Stuck - Hi Limit Thermostat

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There are three parts in your dishwasher involved in the heating process. They are: high limit thermostat (#29 on the

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Old 03-30-2010, 04:49 PM
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There are three parts in your dishwasher involved in the heating process. They are: high limit thermostat (#29 on the diagram, page 6), heating element and control board. You have to have an Ohmmeter to check the thermostat and heating element for continuity.

Remove the toe panel and try to pinpoint the noise.

- The high limit thermostat Part number: AP2109201

Part number: AP2109201



- The heating element Part number: AP4424048

Part number: AP4424048



- The control board Part number: AP3214958

Part number: AP3214958



Here is the Tech sheet.

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Old 03-30-2010, 07:25 PM
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i had narrowed it down to the thermostat. i was wondering if the burnt tip on the spade was okay to re-use. everything is hunky dory there. the question i now have is the drain pump. its loud- making this humming/churning/cranking noise. i hear it when i immediately start a cycle and periodically throughout the whole washing process. i put a new one in and its better but still louder than i expected. is this normal or do i need to further into the lines somewhere to look for the problem? thanks for all your help- ive learned more about dishwashers in the past few days than i ever though i would need to know!!!
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Old 04-01-2010, 07:21 PM
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You may want to check the drain hose for a floating foreign object inside. Otherwise I do not see what can cause an excessive noise, especially with the new pump.

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Old 05-29-2010, 08:19 AM
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I have exactly the same symptoms as described earlier in this post by Maddog8212.
My dishwasher is a Fridgidair Ultraquiet111 (FDB750RCC0)
I have copied the original post below.
Is the "High temp sensor" referred to by Maddog the same thing as the thermostat?
What is the part number?
Where is it located, underneath the tub?
Can it be replaced with the dishwasher in situ?

Best regards
Tigermoth


Gene,
Model number first few characters are rubbed out.
remaining numbers are B750RCC1.

Use and Care Manual are for Frigidaire dishwasher 200. 500. 700, 800 series, P/N 154466101 (0405) from 2003.

original post
Need some double check on a planned repair, please.

I have a dishwasher with failed repair by a service company. Symptom was the timer would not advance past 7 o'clock or 10 o'clock on high temp wash or rinse setting. Serviceman replaced the (1) timer and (2) thermostats to no positive effect, just $200+ bill. I got the tech manual, and saw the likely culprit was the high temp sensor.
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Old 06-14-2010, 12:12 PM
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Default Same problem - hi limit sensor part #?

I am having the same problem where the timer works when the dishwasher settings are on cold, but the timer sticks when the heat settings are on. Does anyone know what the part # is for the hi limit sensor and how to install it?
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Old 07-31-2010, 07:37 AM
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I have the same exact problem as what you described. I replaced the timer and was about to look into replacing the thermostat when I found your post. I was hoping that you might be able to give me the part number for the high temperature sensor. I'm not sure how to find it.

Thank you
John
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Old 07-31-2010, 10:36 AM
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Default No luck here either

I have not had any luck finding the right part number. I spoke to a local parts distributor and they said there is two hi limit thermostats; each about $25. I have not yet bought them and tried to replace it. Sorry I couldn't help, but if I find a solution I will let you know. Please do the same for me.

kglaub
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Old 07-31-2010, 08:26 PM
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jwiseman114 and kglaub,

What are the model numbers of your dishwashers?

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Old 08-01-2010, 04:24 AM
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Default Model #

Frigidaire model #FDB700BFCO

kglaub
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Old 08-01-2010, 07:54 PM
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Quote:
Originally Posted by kglaub View Post
Frigidaire model #FDB700BFCO

kglaub
The high limit thermostat is located under the dishwasher on the left side and is shown as #29 on the diagram. You have to check it for continuity prior to order it because the problem can be a bad heating element too. It has to be checked for continuity as well.

- The high limit thermostat Part number: AP2109201

Part number: AP2109201



- The heating element Part number: AP4424048

Part number: AP4424048



Here are the breakdown diagrams and Replacement parts for FRIGIDAIRE FDB700BFC0 Frigidaire/dishwasher | AppliancePartsPros.com

Gene.
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