Question about LG Dlex7177rm Front Load Dryer dlex7177rm

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High limit thermostat keeps failing. Replaced twice. in two weeks.

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Dryers need good ventilation to work properly. If the vent is clogged it can make the dryer too hot. Clean all of the vent tubing thoroughly.
Check the felt seal at the front and rear of the drum for lint build-up. Check also the blower wheel for lint accumulation as these problems can cause your machine to run hotter that normal putting strain on the thermostat.

Posted on Apr 20, 2015

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Posted on Apr 20, 2015

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Problem with LER3624EQ1 Dryer. I have replaced the high limit switch twice and the thermostat. The dryer will run with hot air for a few minutes and then back to cold air with a new high limit switch. I...


The first thing you need is a multimeter, get one at Walmart you don't need a expensive one and the an be used for a lot of things around the house, pull wires off heater turn meter to ohms check between frame of dryer and each terminal it should show nothing if you are showing anything on the meter get a new heater

Aug 13, 2017 | Dryers

1 Answer

Electric dryer getting way too hot


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3-5 ACCESS TO THE BLOWER WHEEL OR THERMOSTATS

To get to the blower wheel, remove the back of the dryer.

The blower wheel is under the bottom of the lint screen duct to your left, as you look at the back of the dryer.

The operating thermostats are at the blower wheel outlet.

In electric models, the hi-temperature cutout thermostat is mounted to the heat riser.

3-6 TEMPERATURE CONTROLS AND HI-TEMP SAFETIES

These clothes dryer machines use operating thermostats to control the temperature inside the drum, and hi-limit thermostats to prevent overheating of the dryer drum.. Many machines also have extra temperature controls, such as bias thermostats and heaters, hi-temperature cutoffs, and thermal fuses.

Bias thermostats are just like regular operating thermostats, except that they are mounted inside a bias heater. When the bias heater is energized, it generates a small amount of heat, which causes the operating thermostat to open sooner, keeping the dryer drum cooler inside. Thus a bias heater allows a single operating thermostat to act like both a hi-temp and a lo-temp operating thermostat.

A thermal fuse is found on the blower outlet, right next to the operating thermostat(s.) This fuse will blow when too high a temperature is sensed at the outlet; usually when one of the operating thermostats has failed. If it blows, the motor may not start, or you may get no heat (no voltage to the burner.)

A thermal cut-off is mounted on the clothes dryer heater box. It is a back-up for the hi-limit thermostat. Whenever you replace it, you should replace the hi-limit thermostat, too. A high-temperature condition causes it to open, an overheated grounded heat element may also cause it to open.

Dec 01, 2013 | Kenmore Elite HE4 Electric Dryer

1 Answer

Hotpoint tdc62 thermostats keep breaking


It cannot be that the thermostat fails unless there some fault in the circuit or wiring . You need to recheck the lines to the element and the thermostat from the controller., check if there is any leakage or cross connection. Also it is possible that the loss of heat is due to faulty harness or wiring or connectors. Remove and plug back all leads and connections.

Jan 20, 2013 | Washing Machines

1 Answer

Samsung electric dryer keeps burning up thermal cut-off thermostat


I am not familiar with the model.

That the thermostat keeps failing, due presumably to overheated/burned contacts does indicate the element is drawing too much current. I can think of no other reason to explain your experience except possibly there is excessive arcing at the contacts as they open and close. The addition of a suppressor capacitor might help but the big question to be answered is why is there too much current or excessive arcing...

I can only suggest you thoroughly examine the heating element looking for breaks and accidental short circuits between the coils of the element or connecting wires.

Feb 28, 2017 | Dryers

2 Answers

I have a Kenmore series 90 dryer about 15 years old which stopped heating last week. I found several videos on you tube which detailed the steps to troubleshoot and repair. The steps were to check...


Blown high limit fusees can be caused by.
  1. Not enough airflow caused by blockage in the exhaust vent pipe.(most common) Check for strong airflow coming out of the back of machine, then check for good airflow at exterior vent. Clean vent if airflow is restricted.
  2. Bad drum seal
  3. Dirty lint screen
  4. Broken blower wheel
  5. Blockage inside the machine.

Jul 19, 2011 | Kenmore Dryers

1 Answer

No a kenmore 80 series dryer will not heat . if the heating elment is good & fuse is good what else could be the problem


The heating circuit is basically composed of the heating element, thermal cut-off, high-limit thermostat, cycling thermostat, and the motor centrifugal switch. The problem is very likely in the thermal cut-off and the high-limit thermostat located on the blower housing. The thermal cut-off blows when the high-limit thermostat fails and cuts power to the heating element. Both the thermal cut-off and the high-limit thermostat need to be replaced if the former is blown open. Click on the link below for the detailed instructions in troubleshooting this kind of problem.

Troubleshooting Whirlpool and Whirlpool-Made Electric Dryers Running But Not Heating

Mar 09, 2011 | Kenmore Elite HE3 Steam 8676 Dryer

1 Answer

I have an older Kenmore gas dryer model # 97260100 it heats up for 15 minutes then goes cold, drum continues to run can u give me any insight as to what needs to be replaced


The problem is either of the cycling thermostat, high-limit thermostat or the gas valve solenoid coils sitting on top of the gas valve assembly. Disconnect power then verify any of these condition by bypassing the thermostats. Refer to the image below and locate the thermostats.
jahn27_16.jpg
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 72872 Gas Dryer

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.
jahn27_15.jpg
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

My kenmore dryer seems to get very hot and then shut down. After a little while it will restart and then heat up and go off again


Most dryers have more than one thermostat. It sounds like your operating thermostat has failed and the high limit thermostat is working. It keeps the dryer from getting too hot when other parts fail. If the high limit thermostat fails, a thermal fuse should shut down the machine permanently to prevent a fire.

All thermostats will have continuity at room temperature.

Apr 06, 2010 | Kenmore Dryers

1 Answer

Thermal limiter stops dryer; replaced multiple times. Dryer dead.


I think you are working on the wrong end. Check the fan and inlet ductwork of the dryer, if the air isn't moving properly, it will not move enough to keep the coils and limiters cool and they will fail after working properly a few times.

Sep 03, 2009 | Frigidaire Dryers

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