FIXED KitchenAid Refrigerator KRMF706ESS00 - Freezer coils Iceing up

[Nate E]

Hi Chris_81 ... I considered the same thing .. just cutting out the fuse ... but also considered it is there for a reason (even though there are 2) The reason is likely to protect from "over heating the area for prolonged times as the heater gets pretty hot.
This is why I asked in one my earlier posts (#33) for the parameters or specs for the fuse so it can be replaced without having to purchase an entire Fan Evap. assembly.
I am going to call Whirlpool again to see if they can give specs on the 2 Thermo-Fuses.

Maybe too early to tell, but any update on whether replacing the fan motor / Thermo-fuse solved your icing issue? I am literally going through the same thing with the same model, though I did witness my defrost heater doing it's job while the coil was one block of ice, then subsequently not heating once there was only a smaller chunk of ice (though still covering the thermistor). Not sure if it wasnt cold enough to run the heating cycle, or maybe I overheated the thermofuse with the heat gun? Either way, if it freezes up, I'll definitly check this.

Did you hear back from Whirlpool? Might be tough prying specs on subcomponents from their fists.

Nate

 

[mproto]

Maybe too early to tell, but any update on whether replacing the fan motor / Thermo-fuse solved your icing issue? I am literally going through the same thing with the same model, though I did witness my defrost heater doing it's job while the coil was one block of ice, then subsequently not heating once there was only a smaller chunk of ice (though still covering the thermistor). Not sure if it wasnt cold enough to run the heating cycle, or maybe I overheated the thermofuse with the heat gun? Either way, if it freezes up, I'll definitly check this.

Did you hear back from Whirlpool? Might be tough prying specs on subcomponents from their fists.

Nate

Update: Replacing the fan motor / Thermal-fuse assembly solved the issue. This was of course after it was determined the heating element tested good. In my case, one of the two Thermal-fuses was bad. This can be checked w/ a multimeter. I even took the fuse out of its' plastic molded encasement container to see if I could read the numbers off of the fuse but they were very difficult to read and were not printed on the component very well. Whirlpool was of no help even after pursuing multiple departments. (all but their design and engineering which would likely have an answer if you could get to them)
I did look up similar type thermal fuses that would handle the voltage and amperage and came up with a few websites that sell them, but still do not know for certain the fuse that Whirlpool actually specs. (the only unknown is the spec on the "operating" and "maximum operating" temperature for the of the circuity).

 

[Jake]

Update: Replacing the fan motor / Thermal-fuse assembly solved the issue.

Glad to hear that.

Thanks for the update!

 

[mproto]

Glad to hear that.

Thanks for the update!

Jake ... do you know the min/max temps for the KA-KRMF706ESS01 freezer coil defroster?

 

[Jake]

It should say in your tech. data sheet I posted in post #8.