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Customer Questions and Answers for Dryer High-Limit Thermostat by Frigidaire

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Manufacturer Part
4.89 (64)
By: Frigidaire
Part Number: OEM6394440
Manufacturer Part Number: 3204267

Dryer won't heat or shows E64 error? High-limit thermostat cuts power if overheating occurs. Moderate DIY fix with our video guide and instructions.

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Questions & Answers

For Frigidaire Dryer High-Limit Thermostat (Part Number: OEM6394440)

1 Answer

Hello Anna. You will need to replace the heater on the unit. It is grounded and is touching metal on the unit.

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Affrustrated Dryer Buyer for Model Number Frigidaire affinity fase7073lno

Dryer gave an error e63 heater. I cleaned out some lint build-up out of the vent hose, now dryer shows door open & does not start as well as the interior light not coming on. I have replaced the door switch to no avail, hoping that would allow the light to come on & fix door open error. Nope, still same issue. If I replace the thermal limiter part AP4368739 will this take care of the lighting issue when door is in fact open (i.e. it will come on) & when door is really closed, door open error will go away & the dryer will work? Please help solve my mystery!

1 Answer

A frustrated dryer buyer, Based on the information and checking the tech sheet it sounds like you will want to check the thermal fuse on the blower housing to make sure that it has continuity. If the thermal fuse checks ok then you will need to replace the main control board.

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Robert for Model Number Frigidaire FEQ1442E0

Dryer gets extremely hot to touch even when set on Air Fluff. Cleaned the vent thoroughly and even checked dryer with vent disconnected - still gets extremely hot. When removing top to check the themal limiter, I noticed a shorted component on the front control panel. It is the far left component of the front panel and has two wires connected. It is attached to the main board. Can you replace this board? Do you carry this particular part?

1 Answer

Robert, The part that you are referring to is the heater relay on the control board. The control board can be replaced and is part number 134484212.

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1 Answer

Hello Harry. The E64 error code is telling you that there is a problem with the heater You will need to take the dryer apart and check the heater circuit. You have the heater, thermostats, and the... more wiring. The computer is sensing that the heater circuit is open, or in the state of not conducting electrical power to the heater. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

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1 Answer

Hello David. The E64 error code is telling you that there is a problem with the heater You will need to take the dryer apart and check the heater circuit. You have the heater, thermostats, and the wiring. The computer is sensing that the heater circuit is open, or in the state of not conducting electrical power to the heater. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

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Jesse L. for Model Number older model frigidaire stacker washer/dryer gallery series

Problem: -Clothes taking too long too dry -Heating element will heat for about 2-3 min then cycle off, then and off etc... What I've done: -Dryer exhaust was painted shut. Fixed and used brush to remove about a garbage bags worth of lint! -Replaced the thermo couple that was directly attached to the dryer exhaust, not the one by the element. -Removed drum and verified element is in good shape and not grounded out. Confusion: -Does the dryer normally cycle on and off? -Is the high limit mounted by the element or to the exhaust? I don't know which one I've replaced? -The switch attached to the exhaust continues to cycle on and off -My amp meter read a consistent 19amps regardless of high, med or low temp setting Thank you. I wrote another question just before this one but it lacked detail so please disregard.

1 Answer

Hello Jesse. It sounds like the unit is still clogged with lint. Check the inside of the dryer where the blower wheel is located and see if it is clogged. The heat should cycle on and off, but the long dry times is the venting for the unit.

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Jesse L. for Model Number frigidaire stacker washer dryer

The dryer heats for approx 3 min and then the high limit cuts out for about 2 min. It continues this cycle. I replaced the high limit switch suspecting that it was cutting out improperly but no change in operation. The element is in good shape as has not grounded out to the frame. I have now removed the thermostat hoping that is the problem. Tested it on a frying pan and it got very hot before it opened, but it did open? There was also a smaller nickel sized contact which face the back of the machine? Can you offer any other clues?

1 Answer

Jesse, The smaller nickel sized thermostat should be the "thermal limiter" It is a "one shot" thermostat, if it "opens" it doesn't reset, and the dryer won't operate until it is repalced. If the hi limit thermostat is opening, and you've replaced it, your first check needs to be an air flow issue, Have you checked the exhaust vent pipes and vent hood for clogs, restrictions and kinks ? You'll also want to check the lint filter, blower housing, and blower wheel for lint, restrictions and air leaks. You may also have a "sticky" control thermostat, nort opening at the preset temperature(145-155 dgrs.) and allowing the dryer to heat to the hi limit temperature.

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