No Heat on Kenmore Elite Dryer

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  #1  
Old 12-01-20, 02:09 PM
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Arrow No Heat on Kenmore Elite Dryer

I have a Kenmore Elite Dryer HE4 Model 110. The drum turns, the display settings are lit, but it provides no heat. Not sure what to check for. Do these dryers have any diagnostic options. I imagine they would have a thermal fuse but again, I don't know where to look. I think the unit is about 13 to 15 years old. Any help would be appreciated.
 
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Old 12-01-20, 06:24 PM
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I need the full model number. It will be 110.xxxxxxxxxxxxxxxxxxx.
The ID tag is usually in the door opening area.
 
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Old 12-01-20, 07:25 PM
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Sorry. Model number 110.C85872400
 
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Old 12-01-20, 07:37 PM
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Everything in the dryer runs on 120v except for the heating element. It runs on 240v.

There are several problems that occur.
Push your circuit breaker all the way off and then turn back on.
Check the receptacle for 240v.
If the receptacle has 240v on it..... unplug the dryer, remove the rear wiring cover and check cord wiring for anything burned. You can also carefully check at this point for 240v with the dryer on and in heating mode. Be careful.... it's easy to short the connections.

If this all checks out.... you'll need your meter inside the dryer. You'd start by checking all the thermal switches for continuity. They should all check as shorted.

The pdf below is the tech sheet for your dryer. It has diagnostics and tests in it.
 
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Old 12-01-20, 08:07 PM
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Thank you so much. I will check some of those things out. Really appreciate the pdf.
 
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Old 12-02-20, 07:28 AM
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So I have the kick plate off. I checked for continuity for the heating element, thermostat and thermal cut-off. I could not get the wires off the terminals to check this due to a combo of them being stuck on there really tight, for the element where I had access, and really just lack of access to get the wires off of the other two.

So I did my electrical continuity test with the wires connected. System unplugged.

The heating element was continuous with 9 ohms. The thermostat was also continuous, but the thermal cut off was open. Does that mean my problem is the thermal cut off? Can these cut-off switches be reset or would I need a new one?
 
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Old 12-02-20, 07:47 AM
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It does not look like the thermal cutoff is resettable.

Also the thermal cutoff and hi-limit should both be replaced.
The hi-limit should have been opening and closing and protecting the cutoff.
But it's contacts are not that great so after some time the contacts of the hi limit weld together and then the cutoff blows.

You have to find out what caused the heater to overheat.

Could be a clogged vent system but usually this would cause the thermal fuse on the blower to blow.

Check across the heater relay contacts.
They should be open (infinite ohms).
If they are closed then the relay or the board has to be replaced.


 
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Old 12-02-20, 08:20 AM
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Typically any time a thermal limiter fails.... the problem is restricted air flow.
It would be a good time to clean the exhaust path.... inside the dryer as well the outside line
 
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Old 12-02-20, 09:24 AM
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Looking at the vent it looks pretty clean. The air flow, as felt with my hand seems pretty good. I did manage to remove the thermal cut-off and the hi-limit. Without any additional wiring the hi-limit is showing continuity and the cut-off is an open circuit. I also check the two thermal fuses on the blower and the one on the left was fully continuous but the one right beside it on the right had about 17,000 ohms. Not sure if that is to spec or what it means. I was expecting a fully continuous circuit for both if they worked but then I am not sure why they would install two right beside each other so obviously I don't know precisely how they are working.

Is there any way to confirm that the hi-limit is shorted to a closed circuit, which would then answer my failure investigation of why the cut-off died? Or do we just assume that was it if no other issues like a clogged vent can be found?
 

Last edited by OptsyEagle; 12-02-20 at 09:25 AM. Reason: correction
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Old 12-02-20, 09:33 AM
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ALL thermal switches are closed at rest. If you found one that is open.... it is bad.
Most are self resetting. One is a safety and blows open.
 
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Old 12-02-20, 09:53 AM
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Onn the blower.
One device is a thermal fuse. It should be 0 ohms.
The other device is a thermistor> It changes resistance with temperature.
See Pages 7 & 8 in the tech sheet.

High limit should open at 295 degrees F
Cut off should blow at 352 degrees F.
Therefore the high limit must contacts must have stayed closed for the high limit to blow,
Or at least the most likely.

Have you checked the heater relay contacts?

Also check that the heater element is not grounded.
Also that the blower wheel is solidly attached to the blower motor.
 
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Old 12-02-20, 10:02 AM
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OK. So I am attempting to order a replacement kit for the two items, hi-limit t-stat (3391914) and thermal cut-off (8318314). When I search amazon for the hi-limit, part number 3391914, it seems to only come up with kits that have 3391913 in them. The pictures of the parts look exactly like mine but I am worried about the difference in the last number on the part number. I don't know what it might mean. Perhaps it has a different temperature limit.

Would anyone know if these are the same parts or would work or even what the differences might be. The thermal cut off numbers match OK.
 
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Old 12-02-20, 10:30 AM
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#40 - WP3392519 - 195f thermal fuse
#47 - 279973 - thermal cut-off fuse kit (replaces 8318314)
#48 - WP3391914 - high limit thermostat



Pictorial view - click diagram for large view


 
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Old 12-02-20, 10:39 AM
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So the concern I have is the kit identified as #47 (279973) says that it includes the 8318314 cut off but has 3391913 as the part for the high limit T-stat. The parts look like mine but the high limit t-stat I removed was numbered 3391914.

Is this kit 279973 an acceptable replacement for the two parts I need.
 
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Old 12-02-20, 10:55 AM
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WP3391914 = L146.1-44.4C

Same part function. Ok to use the 279973 kit.
 
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Old 12-02-20, 11:02 AM
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Thank you for all your help. Really appreciate it.
 
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Old 12-05-20, 12:34 PM
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So today I received my # 279973 kit from Amazon, containing a new high limit T-stat and thermal cut off fuse. Installed them fairly easily and presto, my dryer now has heat.

Thanks so much for all your help. It is appreciated very much.
 
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Old 12-05-20, 09:36 PM
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You are very welcome. Good job !
 
 

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