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No heat!!! Please help!

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Hello just found out my dryer is not heating. I also had a broken switch in the dryer door so

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Old 11-03-2010, 04:30 PM
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Talking No heat!!! Please help!
Model Number: GEQ9800PW0 27"electric   Brand: Whirlpool   Age: 5 - 10 years   

Appliance Parts from AppliancePartPros.com


Hello just found out my dryer is not heating. I also had a broken switch in the dryer door so no light and it ran sometimes when opening the door. Replaced the switch and door and light now work. I went ahead and bought a new heating element also and installed it but no heat. I work on cars not dryers so I am needing some help on where to look. I see by the wiring diagram that it has a thermal fuse and a few thermostats?? Thanks for any help it would be greatly appreciated!!!

Tommy Sherman


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  #2 (permalink)  
Old 11-04-2010, 03:35 AM
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Here is your parts breakdown
Replacement parts for WHIRLPOOL GEQ9800PW0 27"electric Dryer | AppliancePartsPros.com

Did you check the heater or did you replace it as you felt it was the most likely cause?

I would start with the power. The heater requires the full 240. The light and motor run off half the line (120 volts)
Try flipping the breaker off/on slowly a couple times, sometimes you can loose half the line without actually tripping the breaker.
If this does nothing, check the voltage at the plug
L1 to L2 should be 240 volts
L1 to Neutral and L2 to Neutral, both should be 120 volts.
If OK
Unplug the unit and check the wires at the terminal strip in the machine to make sure none are loose or burned out
If OK
Check the power at the terminal strip.
Be careful as 240 volts is lethal !!!

If power is OK.
I would check the heater's thermal cut-off (fuse) (Item 47 in Section 3).
If it is blown you have to find out what caused it to go.
Note: that sometimes they do just blow on their own but changing it without checking other things is a gamble. I beleive richappy (another regular poster on this forum) has done a study on thermostats and found a wide variation of actual trip point and what is specified.

Check the heating coil. In your case the old heater.
Unplug the unit and both wires to the coil.
Check it with a meter, should be around 10 to 12 ohms.
Then check from each side of the coil to the case, both should be infinite ohms (open). If not the coil may have sagged or broken and is touching the case. This can cause it to run on high and the thermostats cannot regulate it so the thermal cut-off blows.

If the above is OK then you will also have to replace the hi-limit ( Item 48 in Section 3) as it should have regulated the temperature so the fuse did not blow.

You still have to find out why it blew.
Check that the belt is OK.
Check the seals (drum etc) in the unit. The air is pulled over the heating coils, through the drum and pushed out the exhaust. So any large seal leak will pull in room air and the cycling thermostat on the blower will run the unit hot.
Check that the lint filter is not coated with fabric softener residue which greatly reduces air flow.
Check/clean your vent system.
Check/clean the blower wheel.

If all OK you may want to replace the cycling thermostat as it's contacts may not be opening (welded shut).

FYI: The devices on the blower assembly are:
Item 59 in Section 3 is another thermal fuse but it kills power to the motor.
Item 42 in Section 3 is the main heat control thermostat.

If you do not own a meter, I would suggest you purchase a one. You can get a decent digital multimeter for under $20.00. You do not need fancy though it is nice if the leads are a couple feet long.
If it saves ordering one unnecessary part it has paid for itself and you end up owning a useful tool.
Most places will not let you return electrical parts so if you order it, you own it.
A couple things to watch when measuring ohms and continuity
1. Always remove power from the machine otherwise you could blow your meter.
2. Always disconnect at least one side of any device you are checking. This eliminates the possibility of measuring an alternate/parallel circuit path.
3. When checking for closed contacts and continuity use the lowest scale (Usually 200 ohms). Then try higher scales. This scale is 0 to 200 ohms so if the device you are measuring is 300 ohms this scale would show an open circuit which it is not, you are just measuring outside the scale's dynamic range.

There is a good STICKY at the start of this forum about it's use.
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