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Test high limit thermostats - Frigidaire GLER642A Electric Dryer

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Good Afternoon Friend,

I understand that you are trying to test the high limit thermostat, or thermal limiter, on your Frigidaire dryer, model# GLER642A. Typically, this is not a do it yourself job. There are no manuals that will explain how to test the thermal limiter. I suggest contacting your local authorized technician for further assistance. They will be able to diagnose your dryer and be able to better assist. Hope this is helpful.

-Best Regards-

Posted on May 20, 2014


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How do you troubleshoot a high limit switch for a Pitco VF35-S Frialator

To test, jump the two leads on the high limit. However, this sounds most like a faulty gas valve. Most high limits are designed to cut off both the pilot and the main buner.

Aug 13, 2014 | Kitchen Appliances - Others

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Hot to test a thermal limit switch for my dryer

if its the high limit thermostat it will test just like a switch closed it will read very low ohms,open it will read infinity "OL" on some meters

Dec 09, 2012 | Dryers

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No heat from tumble dryer


If dryer is electric check for lint obstructions, check ventilation, test thermal fuse, thermistor, cycling thermostat and high limit, element and fan.

If dryer is gas check for lint obstructions, check ventilation, test thermal fuse, thermistor, cycling thermostat and high limit, igniter, coils, burner, flame sensor and fan.

Dec 14, 2011 | Washing Machines

1 Answer

Kenmore Dryer Model 110.74612200 won't heat ... drum spins and blows air but doesn't heat up

Possibly sounds like your high limit thermostat which is normally the problem with all dryers. When they go bad it will cut the power from your heater. The high limit thermostat is located on the top left of the heater core which is the smallist thermostat on the unit with two red wires running to it one solid red and one solid red with a white stripe. Need a volt meter with a buzzer on it to see if the high limit thermostat is bad just set your volt meter to buzzer or bell symbol normally has a bell on it. Take the positive and negative leads to the thermostat and see if it makes a noise if it does then the thermostat is good if it dosnt make a noise then it is bad (replace it) then if the high limit thermostat is good move down to the heater and test the same way if the heater dosnt make a noise after putting test probes on it your heater is bad continue to test the different thermostats (should be 3 thermostats) (the white rectangle with the two blue wires going to it is a thermo-fuse no need to test it) if they all work and including the heater it is possibly a power problem with your cord or jack and if that is good it is a bad timer that will have to be replaced. You can purchase all these parts from a Appliance Parts House in your area and if you feel unsure on how to test or replace the parts call a qualified technician to come out to your home.

Jan 04, 2011 | Kenmore Dryers

1 Answer

Have a kenmore model # 110.72822101, where's the thermostat located, my dryer gets hot then cold

The cycling thermostat or the high-limit thermostat may not be the problem but rather the gas valve solenoid coils sitting on top of the gas valve assembly. Disconnect power then verify this condition by bypassing the thermostats. Refer to the image below and locate the thermostats.
Note: This is an image of an electric dryer but the thermostat and the thermal cut-off (cut-out) locations are the same.

Disconnect each of the thermostat wires then connect and insulate them properly. Once done, reconnect power and start the dryer. The gas valve solenoid coils are indeed faulty and both need to be replaced if the problem still persists. Click here for the procedure in replacing the solenoid coils.

Gas Valve Solenoid Coils Replacement Procedure

Either or both of the cycling thermostat and the high-limit thermostat are malfunctioning if the dryer continues to heat up with the thermostats bypassed. Disconnect power then reconnect the cycling thermostat wires but keeping the high-limit thermostat bypassed. Reconnect power then start the dryer. The high-limit thermostat is the culprit if the dryer continues to heat up. If not, then the cycling thermostat is the culprit.

Also do the other way; that is reconnecting the high-limit thermostat wires but keeping the cycling thermostat bypassed. The cycling thermostat is the culprit if the dryer continues to heat up. If not, then the high-limit thermostat is the culprit.

Replace the faulty thermostat and it should solve the problem.

Nov 08, 2010 | Kenmore 72822Gas Dryer

1 Answer

Fryer was working before being cleaned but a cook started it up without the oil now nothing will work?

Hopefully it has kicked out on high limit thermostat. It depends a lot ofn what type of control you have on your fryer. If they are all mechanical controls, the high limit may need to be reset. Open the front door of the fryer. There are two thermostat bulbs in the fryer. One goes to the thermostat with the temperature dial, the other to the high limit thermostat. Hopefully the high limit thermostat that you have will have a small red button sticking out. Push that button in and then relight the pilot as you would normally do. If your high limit thermostat does not have a red button it is an automatic reset high limit. When the fryer pot cools below 300 degrees it should reset itself. If you have electronic computer controls on your fryer you will have to reprogram your thermostat settings.

Sep 08, 2010 | Pitco Frialator 35CD Deep Fryer

1 Answer

How would you know high limit thermostat is defective. need to know before ordering part

Hi, you'll need a ohm tester (multi-tester) you will have to remove / disconnect wires from hi-limit, in normal room temperature, place tester lead on terminals where you remove wires, if you get a beep/continuity, hi-limit is o/k, if no beep/continuity, hi-limit faulty, for further test you can heat up hi-limit, (oven) and check with tester, hi-limit switch off when temperature gets to high, and switch on when temperature drops, so at room temperature hi-limit should be on, (hear beep on tester), if there's no beep/continuity at room temperature, high-limit is faulty. disconnect power before doing any repairs, good luck.

Aug 29, 2009 | Dryers

1 Answer

Dryer does not heat ellement is good

If the dryer won't heat and the heating element is good, then check the thermal fuse and the high limit thermostat. The thermal fuse is located just inside the rear of the dryer and is mounted on the exhaust duct. Test it for continuity using a multimeter. A lack of continuity indicates a blown thermal fuse. '
The high limit thermostat is a small round, black device mounted on a metal plate and attached to the internal ductwork with two screws. It can be tested for continuity. It should have none. If it has continuity it is faulty. I am attaching a photo of the thermal fuse and high limit thermostat for reference. Hope this helped and best wishes.


Aug 09, 2009 | Dryers

1 Answer

The clothes come out pretty wet, despite going through the drying cycle.

I would suspect a partially burned out heating element or a faulty high limit thermostat. Both components can be tested using a multimeter or ohm meter. Test for continuity. If the heating element has no continuity, it is faulty. If the high limit thermostat has continuity, it is stuck and is faulty. Hope this helped and best wishes.

Aug 06, 2009 | Washing Machines

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How do I test my dryers heating element, and High Limit thermostat?

Both can be checked with a multimeter set to the ohms setting. Disconnect the coil from the dryer and place a test lead to one end og the coil. Place the other test lead on the opposite end of the coil. If the circuit closes, the coil is good. Do the same with the High Limit thermostat. If the thermostat is closed, the thermostat is good. (Note: that is if the thermostat is Normally Closed - opens when the temperature exceeds the temperature). You can find out by contacting the replacement parts center.

Aug 04, 2009 | Maytag Atlantis MDE7400AY Electric Dryer

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