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heat sensor fuse

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have never had this problem before. Blows fuse during dryer cycle (fuse pt # 40113801) baught new fuse locally and

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  #1 (permalink)  
Old 04-30-2011, 06:20 PM
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Default heat sensor fuse
Model Number: ALE443RAW   Brand: Amana   Age: More than 10 years   

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have never had this problem before.
Blows fuse during dryer cycle (fuse pt # 40113801)
baught new fuse locally and installed it.(cost$19.88, your cost $4.70)
Dried 2 loads and started 3rd when same thing happened again.
No need to replace it again until I find out why, Where should I start?Bob


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  #2 (permalink)  
Old 05-01-2011, 03:50 AM
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Here are your parts
Replacement parts for ALE443RAW models | AppliancePartsPros.com

Check the heating coil.
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/frame, 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.
Also check for any signs that the coil touched the case when hot and then disconnected itself when it cooled down.

The hi-limit should have regulated the temperature so the fuse did not blow.
Note: That unless there is another problem in the unit the hi-limit should never have to open. It is just a safety device with the fuse being a backup safety device.

Just in case it is not a grounded element.
With all the below the high limit will also have to be replaced.
If the dryer seems to be running hot for the last while then it has probably been running on the hi-limit. So you have to find out why.
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)
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  #3 (permalink)  
Old 05-03-2011, 03:57 PM
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Default thermal fuse

denman
followed your instructions exactly.everything fell in range as you described it.
purchased another fuse and installed it as directed.
tried dryer long enough to see if it would heat and it did!
next tried a small load and started it on medium heat and it nevered dried them before the same problem again.

that leaves the changing cycling thermostat.I don't know where it is located, any help there?
bobm
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  #4 (permalink)  
Old 05-03-2011, 04:34 PM
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Cycling thermostat is Item 12 in Section 6
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