[acallao]

Got F25 error in diagnostic mode.

Bought part AP3951297 (8577891) THRMST-FIX to replace.

Still did not work. Opened up dryer again and looked at heating element.

Turns out a bra wire was shorting out the heating element (no idea how that got in there). Slight blackening of heating element area but still operational.

Removed wire and retested. Still got F25 error. I think I shorted out the new high limit thermostat that I inserted before I discovered the short of the heating element.

So I'm off to order a new part again. Here is my question. I am looking at the Dryer thermal cut-off kit Part Number: AP3094244 which includes a high limit themostat. However, it is missing one connection that AP3951297 THRMST-FIX has. It is a plastic black connection that can be seen in the photo of the part. What is that and how important is it to dryer operation?

Any help or thoughts would be greatly appreciated.

[Joe / APP Team]

Originally Posted by acallao

Got F25 error in diagnostic mode.

Bought part AP3951297 (8577891) THRMST-FIX to replace.

Still did not work. Opened up dryer again and looked at heating element.

Turns out a bra wire was shorting out the heating element (no idea how that got in there). Slight blackening of heating element area but still operational.

Removed wire and retested. Still got F25 error. I think I shorted out the new high limit thermostat that I inserted before I discovered the short of the heating element.

So I'm off to order a new part again. Here is my question. I am looking at the Dryer thermal cut-off kit Part Number: AP3094244 which includes a high limit themostat. However, it is missing one connection that AP3951297 THRMST-FIX has. It is a plastic black connection that can be seen in the photo of the part. What is that and how important is it to dryer operation?

Any help or thoughts would be greatly appreciated.

Acallao,

The thermal cut-off kit,

Part number: AP3094244

Would be your best bet, you'll have everything you need and instructions for the proper installation of the part.

Expect to have a problem with the heater element, soon. The element doesn't react well to shorts,of any kind, they develop a weak spot, and fail in a short period of time.

Part number: AP3094254

Good Luck,

[acallao]

Thanks for your prompt reply.

So if I go with the kit, the hi limit thermostat doesn't have the black plug like the part that is linked to below (second image on left side of part).

Part Details - WHIRLPOOL THRMST-FIX, part number: AP3951297

So I will have a dangling connection from the dryer that wants to connect to that connector on the current hi limit thermostat.

Is that ok or is that dangerous for dryer operations?

[Joe / APP Team]

Originally Posted by acallao

Thanks for your prompt reply.

So if I go with the kit, the hi limit thermostat doesn't have the black plug like the part that is linked to below (second image on left side of part).

Part Details - WHIRLPOOL THRMST-FIX, part number: AP3951297

So I will have a dangling connection from the dryer that wants to connect to that connector on the current hi limit thermostat.

Is that ok or is that dangerous for dryer operations?

No,it doesn't work that way,

The kit comes with the thermal fuse and a "new"style hi limit thermostat, the instruction sheet will tell you how to make the connections, so there are no loose wires, when you're done.

[acallao]

Great, that's what I needed to know. Thanks for the help, I'll post how everything turns out.

[Joe / APP Team]

Originally Posted by acallao

Great, that's what I needed to know. Thanks for the help, I'll post how everything turns out.

Great,

Yes, please give us an update with what you find and any repair procedures you may have found more helpful, It'll come in handy for future reference on the Repair Forum.

[acallao]

Replaced heating element and inlet thermistor. Still getting F25 error. Also replaced thermal cut off.

What am I missing here? Do any of the connections on the inlet side have polarity that I may have reversed on reassembly?

I was reading the tech sheet and another option was the wire harness is either open or shorted. Machine control electronics?

Any other thoughts or ideas?

[Joe / APP Team]

Originally Posted by acallao

Replaced heating element and inlet thermistor. Still getting F25 error. Also replaced thermal cut off.

What am I missing here? Do any of the connections on the inlet side have polarity that I may have reversed on reassembly?

I was reading the tech sheet and another option was the wire harness is either open or shorted. Machine control electronics?

Any other thoughts or ideas?

Acallao,

You haven't missed anything so far, thermostat fuses and thermistors are not a polarity sensitive component, so you're fine there.

If you have a multi meter, you need to disconnect the P4 wire harness connector on the control board, and check for 50,000 ohms on the 2 red wires (p4 pin1 and p4 pin2)at room temperature, on the wire harness connector.If you don't have a meter, check the 2 wires from the inlet thermistor to the control board, no visible damage, then replace the control board.

Part number: AP4359310

Good Luck,

[acallao]

Will check with multimeter and if not I will order the board. Thanks again for the input.

[Joe / APP Team]

Originally Posted by acallao

Will check with multimeter and if not I will order the board. Thanks again for the input.

Acallao,

OK, thats what/how it works out from the wiring diagram and the F25 code.

Let us know how you do.