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It wont heat at all. I checked thermal fuse, ok. I checked thermostat, ok. I checked heating element, ok. What else can I check?

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OK, this will be a timer issue in this case. the timer mechanism has become unstable.

Replace the timer module or, control board.

Posted on Jun 18, 2009

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Hi, Our dryer runs but doesn't heat. We checked the power source, heating element with ohm meter but it was fine. What else should we check? Thanks.


Hi.

If the dryer runs there is no problem with power. If the appliance runs but does not heat the problem is one of the thermal devices. The dryer comprises one thermal fuse, several thermostats and the element. Thermal fuse and thermostats must be checked along with the element.

Start from the thermal fuse. The fuse can be tested reading impedance with a multimeter. If the fuse is open it will read Ohms infinity. In that case replace the fuse. Here the part: ASSY-BRACKET (THERMOSTAT) (Thermal Fuse with Bracket).

The fuse is part n.15 in Diagram one below. Click on the picture to enlarge:

ginko_278.gif

If the fuse is OK, or if replacing the fuse did not help test the thermostats. You have the following parts:

THERMOSTAT - Part 11 in diagram

High Limit Thermostat -Part 13 in diagram

THERMISTOR - Part 27 in diagram

If the appliance is running the door switch should not be the problem. If you need test also the DOOR-SWITCH.

The thermostats can be tested reading impedance. If there is no heat, then one of the thermostats is open and will return Ohms infinity. Other way to test a thermostat is by jumping its contacts and running a controlled cycle to prevent overheating.

Regards.

Ginko

Aug 09, 2011 | Amana NED7200TW Electric Dryer

1 Answer

No heat


Hi.

If it is turning but not heating, check the thermal fuse if present. The fuse is also tested checking continuity. If the fuse is OK, check the thermostats in the heater assembly. If the thermostats are good, they will read zero or very low impedance at room temp.Depending on the model there are two or three thermostat/thermistors in the appliance.
If even thermostats are OK, check heating element. It must have continuity.
If element is OK, check wiring, then fan, then go for the timer control.

Here all parts.

Regards.

Ginko.

Feb 27, 2011 | LG DLE2516 Electric Dryer

1 Answer

Dryer drum works but does not heat. Everything else works. I have checked the fuse and I have made sure it is not on air dry.


THERMAL FUSES MAY BE THE CAUSE OF THIS In recent years the makers of dryers are using thermal fuses to let you know something is wrong with your dryer. They are generally non resetting and have to be replaced. The thermal fuses are located on the heater element housing and should read continuity if read with an ohm meter. Most blown thermal fuses are the result of vent/air flow problems or a grounded heating element. Follow the diagram below to see how to check the continuity of the switch, and look closely at the switch to see a fairly close idea of what you are looking for, ok

jim_james_43.jpg

OR it could be a thermostat.
Cycle and safety thermostats-read them with an ohm meter. Should show continuity .

or lastly, it might be
the Heat elements-Test heater element with an ohm meter. You will read continuity across a good element ( 8-12 ohms is an average element ).

IF you do not have an OHM-METER, then you can check these issues by following the directions below:

To check the thermal fuse - You can bypass the thermal fuse (just connect the 2 wires together) for testing purposes only.

To check the thermal cut-out - You can bypass the thermal cut-out (just connect the 2 wires together) for testing purposes only.


To check the thermostats for continuity - - You can bypass the thermostat (just connect the 2 wires together) for testing purposes only.

To check the Element: Try removing element and physically looking at the element wire for a break in the wire.


Do not forget to rate this answer!!

Jan 24, 2011 | Frigidaire Electric Dryer

1 Answer

Runs thru cycle but no heat . Exaust air is cold. All filters are clean


first make sure you have 240volts at the plug,if not check homes fuses or breaker to make sure they're good and/or not tripped,then remove either the top and front cover,or if the heating element is accessable from the rear do that,if the elements ok then check the hi limit thermostat on the element housing,then check the thermal fuse and cycling thermostat/switch on the blower housing,if any of these open you wont get heat

Oct 24, 2010 | Bosch 24 in. SGS47E02 Exxcel Free-standing...

1 Answer

Dryer will not heat up when running. Was told to check the thermo fuse, ignitor and/or coil. Is that right? How do I check those things.


hello there
Please follow this procedure I have provided below and it will tell you how to test each one ok
Hope this is very helpful


Investigate these five areas if your dryer is not heating up:

Proper Voltage

If your dryer won't heat up, it's possible that it is not being supplied with the proper voltage. Here are three ways to make sure power is getting to your dryer: First, make sure your dryer is plugged in. Next, check the circuit breaker panel to make sure all the circuit breakers are in the correct positions. Finally, check to make sure no fuses in your fuse panel are blown. Any of these could explain why power is not getting to your dryer.

dryer_heating-element.jpg Heating Element

It is possible that your dryer isn't heating because its heating element is defective. Heating elements are irrepairable. If yours has ceased to function properly, you will have to replace it. Open your dryer's cabinet and locate the heating element so that you can test it.
dryer_thermal-fuse.jpg Thermal Fuse

Another possible cause for a dryer not heating up could be attributed to a faulty thermal fuse. Once a dryer's thermal fuse has blown, it is no longer of any use. If your dryer's fuse is blown, you will have to replace it. Open up your dryer's cabinet and locate its thermal fuse so that you can test it.
dryer_thermostat.jpg Thermostat

If any of your dryer's thermostats have become defective, they could be the reason that your dryer is not heating. Open up your dryer's cabinet and test each of your dryer's thermostats. If any are faulty, replace them.
dryer_timer.jpg Timer motor

A defective timer motor could also cause your dryer to not heat up. Test your dryer's timer motor. If it is no longer functioning as it should, replace either the entire motor assembly, or just its motor.























Jan 24, 2010 | Kenmore Dryers

2 Answers

Wont heat up


Generally either a bad thermostatic fuse or an open in the coil. I would suggest checking Here:http://www.repairclinic.com/ for issues related specifically to your make and model as well as repair/diagnosis advice and parts.

Jan 22, 2010 | Dryers

2 Answers

Dryer will not heat up, why?


Hello there
There are several reasons why a dryer will not heat up
i will do my best to explain them and i will add some links that you can use to help you out ok ?

If your dryer won't heat up, it's possible that it is not beingsupplied with the proper voltage. Here are three ways to make surepower is getting to your dryer: First, make sure your dryer is pluggedin. Next, check the circuit breaker panel to make sure all the circuitbreakers are in the correct positions. Finally, check to make sure nofuses in your fuse panel are blown. Any of these could explain whypower is not getting to your dryer.


Heating Element

It is possible that your dryer isn't heating because its heatingelement is defective. Heating elements are irreparable. If yours hasceased to function properly, you will have to replace it. Open yourdryer's cabinet and locate the heating element so that you can test it.

Thermal Fuse

Another possible cause for a dryer not heating up could be attributedto a faulty thermal fuse. Once a dryer's thermal fuse has blown, it isno longer of any use. If your dryer's fuse is blown, you will have toreplace it. Open up your dryer's cabinet and locate its thermal fuse sothat you can test it.

Thermostat

If any of your dryer's thermostats have become defective, they could bethe reason that your dryer is not heating. Open up your dryer's cabinetand test each of your dryer's thermostats. If any are faulty, replacethem.

Timer motor

A defective timer motor could also cause your dryer to not heat up.Test your dryer's timer motor. If it is no longer functioning as itshould, replace either the entire motor assembly, or just its motor.

Dec 30, 2009 | Kenmore Elite 45986 Front Load Washer

2 Answers

No heat


If electric pad heat element, if gas ck the gas supply line (make sure gas is on). could also be bad gas valve/pilot igniter.

Aug 09, 2009 | Dryers

1 Answer

Kitchenaid superba dryer won't heat Where is the heater fuse located?


Q - My electric dryer runs but will not heat, what could stop my dryer from heating?
A - Things that could stop a electric dryer from heating:
- house fuse or breaker ( needs two of them ), heating element, burnt wire, thermostat(s), thermal fuse ( not all models ), motor heat switch, timer, selector switch, burnt power cord/plug.
A ohm meter test for these parts is here.
Q - My gas dryer will not heat, what could stop my dryer from heating?
A - Things that could stop a gas dryer from heating:
- glow bar igniter, thermal fuse ( not all models ), coils on the gas valve, gas valve, thermostats,motor heat switch, timer, selector switch, sensor.
A page for checking gas dryers is here.
Meter testing and usage tips.
1. Power supply-check power supply at terminal block where cord enters the dryer. Should read 240V. If you read 240V here, tested with a volt meter, unplug dryer and test components with ohm meter.
2. Thermostats-Cycle and safety thermostats-read them with an ohm meter. Should show continuity . How common thermostats work.
3.Timer-The timer has a set of contacts that pass voltage to the heaters. If you can not determine by wiring picture what they are, check across the two terminals with the largest wires on them. The heater wires are almost twice as large as the others. You should read continuity with timer in heat mode.
4. Thermal fuses-In recent years the makers of dryers are using thermal fuses to let you know something is wrong with your dryer. They are generally non resetting and have to be replaced. The thermal fuses are located on the heater element housing and should read continuity if read with an ohm meter. Most blown thermal fuses are the result of vent/air flow problems or a grounded heating element.
5. Selector Switches-Read the wiring picture and determine which switch is closed. You should read continuity across closed switches.
6. Safety Switch on Motor-There is a safety switch on motor to insure that heaters can not come on unless motor is running. It is normally open when the motor is idle/not running, and closes when motor runs. In order to check with an ohm meter, remove the two large wires on motor switch and make them electrically safe. Tape them. Plug the dryer in and start motor. Check continuity across the terminals on the motor switch you removed the heavy wires from. If it is ok you should read continuity. Remember that the smaller wires in a dryer carry the 120V and the large wires carry 240V. There is no voltage on these two terminals with wires removed. It is ok to test with ohm meter.
7. Heat elements-Test heater element with an ohm meter. You will read continuityacross a good element ( 8-12 ohms is an average element ).
But darn it, I don't have a Ohm Meter....
To check the thermal fuse  - You can bypass the thermal fuse (just connect the 2 wires together) for testing purposes only.To check the thermal cut-out  - You can bypass the thermal cut-out (just connect the 2 wires together) for testing purposes only.
To check the thermostats for continuity -  - You can bypass the thermostat (just connect the 2 wires together) for testing purposes only.
To check the Element: Try removing element and physically looking at the element wire for a break in the wire.

How to take apart information for GE style dryers
How to take apart information for Inglis - Whirlpool - Kenmore dryers
How to take apart information for Maytag dryers
How to take apart information for Frigidaire and White Westinghouse
How to take apart information for Admiral, Norge, Magic Chef and Crosley

Mar 30, 2009 | KitchenAid Dryers

2 Answers

Whirlpool Duet Dryer - Working but no heat


it sounds like your heating element is gone bad. there is no heat if they burn out or get corroded

Jun 28, 2008 | Whirlpool GEW9250 Electric Dryer

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