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About a month ago I had issues with loads taking two cycles to dry. I cleaned out the internal and

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  #1 (permalink)  
Old 03-01-2011, 08:39 AM
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Default Dryer Heat Just Quit
Model Number: LER4624BQ0   Brand: Whirlpool   Age: More than 10 years   

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About a month ago I had issues with loads taking two cycles to dry. I cleaned out the internal and external vents on the dryer and found a large qty of debris down by the fan. After cleaning it out the dryer was working great. Everything dry in one load and nice and hot when it cam out. Then this morning it just stopped producing any heat at all. Looking at other posts in this forum it looks like I need to purchase an Ohms Meter and check a few circuits. I just wanted to very what needs to be tested and what do you think would be the most likely cause. I may just play swap the part if something sticks out like a sore thumb.

Dryer cycling thermostat....?
Thermal cut-off.....?
High-limit thermostat....?
Heating Element itself? ....?

Whirlpool LER4624BQ0


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  #2 (permalink)  
Old 03-02-2011, 12:58 AM
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Here are your parts
Replacement parts for WHIRLPOOL LER4624BQ0 | AppliancePartsPros.com

Your list looks good to me.
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  #3 (permalink)  
Old 03-03-2011, 04:15 AM
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Thanks for the part list. It was fairly easy to find. The Thermal cut-off was blown. Nothing like fixing your own appliance with a $16 multimeter and a $23 part.
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Old 03-03-2011, 04:48 AM
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If the thermal cut-off you replaced was Item 6 in Section 3 then there are other things you should check as a precaution against it blowing again.

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.

The hi-limit should have regulated the temperature so the fuse did not blow, that is why there is a new one with the thermal cut-off..
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.
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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