Question about Whirlpool LER4634J Electric Dryer

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The dryer will not start

Whirlpool Dryer Model LGC7646DQ0 Serial ME2401631

The thermal fuse has continuity. But I'm wondering if the internal bias thermostat could be bad. It has 2 red wires and 2 purple wires on it. When I remove the wires, there is continuity on the connections where the red wires were, but not where the purple wires were. Should there be continuity between the connections where the purple wires were? Or do you have any further suggestions on other possibilities?

Dryer was working fine earlier this week, then wouldn't work when tried today.

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Thermostat would not cause it not to run if the white thermal fuse has continuity ck the door switch to be sure lever is not broke also ck breaker after switch timer most logical but unless you know to ck best not just guess could be expensive

Posted on Dec 08, 2008

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1 Answer

Model RED4440sqO; will not run. Repaced both 30


Remove the rear panel on the blower housing there is a cycling thermostat (part number 3387134) with internal bias heater and a thermal fuse (part number 3392519). The latter is wired in series with the motor which will cause the motor or the dryer as a whole not to start or run when it has failed. Grab a volt-ohmmeter and set the scale to R X 1 then disconnect a wire from the thermal fuse and check its continuity. Replace the thermal fuse should it read open including the cycling thermostat.

Most likely the motor thermal overload has failed if there's power to the dryer and the thermal fuse replaced but the dryer still doesn't run.

May 24, 2010 | Dryers

1 Answer

Will not heat


If the model number you posted this question under is correct, your heating circuits are comprised of the following components:

1. Heating Element
2. Thermal Cut-Out
3. Hi-Limit Thermostat
4. Internal Bias Thermostat
5. Thermal Fuse

You can access them by UNPLUGGING the dryer and removing the rear panel.

As viewed from the rear of the dryer, your Heating Element will be located on the RIGHT hand side inside a heater box. The Thermal Cut-Out will be located on the outside of the heater box at the end opposite the heating element terminals. The Hi-Limit Thermostat will be located adjacent to the heating element terminals.

The Internal Bias Thermostat and Thermal Fuse are two small components mounted on the Blower Fan housing on the lower LEFT hand side.

You can refer to the following parts illustration for assistance:

http://pcappliancerepair.com/model-display.php


The components are listed as follows:

Heating Element (Item 17)
Thermal Cut-Out (Item 6) - This is a replacement kit. Includes Item 15 when ordering.
Hi-Limit Thermostat (Item 15)
Internal-Bias Thermostat (Item 20)
Thermal Fuse (Item 19)

If your dryer is NOT configured this way, please post back with your complete MODEL NUMBER (located on a nameplate around the door opening) and let me know.

If you need assistance on how to troubleshoot a dryer, you can refer to this link:

http://www.fixya.com/support/r3574266-thorough_dryer_advice

The MOST common causes of heat related problems:

1. Blown Thermal Cut-Out.

2. Missing 1/2 your input voltage at the wall receptacle (the dryer will still run with half the voltage missing, but won't heat - double check your source voltage at the receptacle and/or your circuit breakers.

3. Bad power cord, causing 1/2 the input voltage to be missing.

4. Blown heating element.

Read through all the information provided and let me know if you have any questions. I hope you find this information helpful.

NOTE: Take all resistance readings with the dryer UNPLUGGED and the component under test isolated (meaning disconnect any wire leads to ensure the accuracy of your readings).

Apr 23, 2010 | Whirlpool LER4634J Electric Dryer

1 Answer

Whirlpool dryer not heating up


If the model number you posted this question under is correct, your heating circuits are comprised of the following components:

1. Heating Element
2. Thermal Cut-Out
3. Hi-Limit Thermostat
4. Internal Bias Thermostat
5. Thermal Fuse

You can access your heating circuits by UNPLUGGING the dryer and removing the rear panel.

As viewed from the rear of the dryer, your Heating Element will be located on the RIGHT hand side inside a heater box. The Thermal Cut-Out will be located on the outside of the heater box at the end opposite the heating element terminals. The Hi-Limit Thermostat will be located adjacent to the heating element terminals.

The Internal Bias Thermostat and Thermal Fuse are two small components mounted on the Blower Fan housing on the lower LEFT hand side.

You can refer to the following parts illustration for assistance:

http://pcappliancerepair.com/model-display.php


The components are listed as follows:

Heating Element (Item 17)
Thermal Cut-Out (Item 6) - This is a replacement kit. Includes Item 15 when ordering.
Hi-Limit Thermostat (Item 15)
Internal-Bias Thermostat (Item 20)
Thermal Fuse (Item 19)

If your dryer is NOT configured this way, please post back with your complete MODEL NUMBER (located on a nameplate around the door opening) and let me know.

If you need assistance on how to troubleshoot a dryer, you can refer to this link:

http://www.fixya.com/support/r3574266-thorough_dryer_advice

The MOST common causes of heat related problems:

1. Blown Thermal Cut-Out.

2. Missing 1/2 your input voltage at the wall receptacle (the dryer will still run with half the voltage missing, but won't heat - double check your source voltage at the receptacle and/or your circuit breakers.

3. Bad power cord, causing 1/2 the input voltage to be missing.

4. Blown heating element.

Read through all the information provided and let me know if you have any questions. I hope you find this information helpful.

NOTE: Take all resistance readings with the dryer UNPLUGGED and the component under test isolated (meaning disconnect any wire leads to ensure the accuracy of your readings).

Apr 22, 2010 | Whirlpool LER4634J Electric Dryer

1 Answer

My dryer has no heat


If the model number you posted this question under is correct, your heating circuits are comprised of the following components:

1. Heating Element
2. Thermal Cut-Out
3. Hi-Limit Thermostat
4. Internal Bias Thermostat
5. Thermal Fuse

You can access your heating circuits by UNPLUGGING the dryer and removing the rear panel.

As viewed from the rear of the dryer, your Heating Element will be located on the RIGHT hand side inside a heater box. The Thermal Cut-Out will be located on the outside of the heater box at the end opposite the heating element terminals. The Hi-Limit Thermostat will be located adjacent to the heating element terminals.

The Internal Bias Thermostat and Thermal Fuse are two small components mounted on the Blower Fan housing on the lower LEFT hand side.

You can refer to the following parts illustration for assistance:

http://pcappliancerepair.com/model-display.php

The components are listed as follows:

Heating Element (Item 17)
Thermal Cut-Out (Item 6)
Hi-Limit Thermostat (Item 15)
Internal-Bias Thermostat (Item 20)
Thermal Fuse (Item 19)

If you need assistance on how to troubleshoot a dryer, you can refer to this link:

http://www.fixya.com/support/r3574266-thorough_dryer_advice

The MOST common causes of heat related problems: 1. Blown Thermal Cut-Out. 2. Missing 1/2 your input voltage at the wall receptacle (the dryer will still run with half the voltage missing, but won't heat - double check your source voltage at the receptacle and/or your circuit breakers. 3. Bad power cord, causing 1/2 the input voltage to be missing. 4. Blown heating element. Read through all the information provided and let me know if you have any questions, or need further assistance. I hope you find this information helpful. NOTE: Take all resistance readings with the dryer UNPLUGGED and the component under test isolated (meaning disconnect any wire leads to ensure the accuracy of your readings).

Apr 02, 2010 | Whirlpool LER4634J Electric Dryer

2 Answers

Dryer drum will turn but not heat up any suggestions? purchased a ohm meter and removed the back panel not sure how to test for continuity(power has been disconnected!) Fairly new dryer please help


If the model number is correct, your heating circuits are comprised of the following components:

1. Heating Element
2. Thermal Cut-Out
3. Hi-Limit Thermostat
4. Internal Bias Thermostat
5. Thermal Fuse

You can access your heating circuits by UNPLUGGING the dryer and removing the rear panel.

As viewed from the rear of the dryer, your Heating Element will be located on the RIGHT hand side inside a heater box. The Thermal Cut-Out will be located on the outside of the heater box at the end opposite the heating element terminals. The Hi-Limit Thermostat will be located adjacent to the heating element terminals.

The Internal Bias Thermostat and Thermal Fuse are two small components mounted on the Blower Fan housing on the lower LEFT hand side.

You can refer to the following parts illustration for assistance:

http://pcappliancerepair.com/model-display.php

The components are listed as follows:

Heating Element (Item 17)
Thermal Cut-Out (Item 6)
Hi-Limit Thermostat (Item 15)
Internal-Bias Thermostat (Item 20)
Thermal Fuse (Item 19)

If you need assistance on how to troubleshoot a dryer, you can refer to this link:

http://www.fixya.com/support/r3574266-thorough_dryer_advice

The MOST common causes of heat related problems: 1. Blown Thermal Cut-Out 2. Missing 1/2 your input voltage at the wall receptacle (the dryer will still run with half the voltage missing, but won't heat - double check your source voltage at the receptacle and/or your circuit breakers. 3. Bad power cord, causing 1/2 the input voltage to be missing. 4. Blown heating element. Read through all the information provided and let me know if you have any questions, or need further assistance. I hope you find this information helpful. NOTE: Take all resistance readings with the dryer UNPLUGGED and the component under test isolated (meaning disconnect any wire leads to ensure the accuracy of your readings).

Mar 30, 2010 | Whirlpool LER4634J Electric Dryer

1 Answer

How many thermostats are there and where are they located?


If the model number is correct, your heating circuits are comprised of the following components:

1. Heating Element
2. Thermal Cut-Out
3. Hi-Limit Thermostat
4. Internal Bias Thermostat
5. Thermal Fuse

You can access your heating circuits by UNPLUGGING the dryer and removing the rear panel.

As viewed from the rear of the dryer, your Heating Element will be located on the RIGHT hand side inside a heater box. The Thermal Cut-Out will be located on the outside of the heater box at the end opposite the heating element terminals. The Hi-Limit Thermostat will be located adjacent to the heating element terminals.

The Internal Bias Thermostat and Thermal Fuse are two small components mounted on the Blower Fan housing on the lower LEFT hand side.

You can refer to the following parts illustration for assistance:

http://pcappliancerepair.com/model-display.php

The components are listed as follows:

Heating Element (Item 17)
Thermal Cut-Out (Item 9)
Hi-Limit Thermostat (Item 15)
Internal-Bias Thermostat (Item 8)
Thermal Fuse (Item 7)

If you need assistance on how to troubleshoot a dryer, you can refer to this link:

http://www.fixya.com/support/r3574266-thorough_dryer_advice

If you have any questions, or need further assistance, please post back and let me know. I hope you find this information helpful.

Mar 21, 2010 | Whirlpool WED5700S Electric Dryer

1 Answer

Can't control heat setting


Either your dryer vent is clogged, the blower wheel is striped out and not turning or the internal bias thermostat you bought is bad. These are the only things that can make the dryer over heat.
Please rate solution.

Sep 04, 2009 | Whirlpool Dryers

1 Answer

When I press the start button, the dryer does not run


Is this a colipso dryer, I think that is how you spell it? If so then yes it very well could be a control board.

Apr 02, 2009 | Whirlpool GEW9868K Electric Dryer

2 Answers

Dryer won't start, no noise


This is most often caused by a bad thermal fuse on the exit chute. Main reason is plugged / restricted venting and dirty or bad thermostat, which is next to the fuse on most dryers. Hope this helps!

Jan 05, 2009 | Whirlpool Dryers

2 Answers

Overheating & Cutting Off


Ok, this sounds like it could be what is know as your machine's "Thermal Internal Bias" (TIB) device (Whirlpool part #: 3387134). It's @ $15 I think and easily accessed by removing the rear panel of the dryer. It is attached to the blower housing located on the lower left as your are facing the dryer.

It's designed to "cut-out" if the dryer temp is too great at the blower. After the air cools a bit it comes the dryer contines operating. Your TIB my be getting weak and not so hardy as to tolerate the high temps. Replace and give it a try.

Remember to unplug your dryer before attempting this! Safety first and always!

Nov 28, 2008 | Whirlpool LER4634J Electric Dryer

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