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FIXED Another KRMF706ESS01 freezer issue! dreaded "PO" outage message - Please help!

Battleborn85

Premium Member
Joined
Dec 8, 2021
Messages
5
Location
Reno
Model Number
KRMF706ESS01
Brand
KitchenAid
Age
6-10 years
So... 6 year old unit. Has new rc fan, new control board, new power board ... Thermistors check ok. When running diagnostic service test 4, all goes well until 4.05- " Compressor on- Drive valve to FC and turn FC fan on".... When this test is underway, the unit shuts down and later displays the dreaded "PO" outage message... Please help! I'm at a loss. I'm sure there is a sealed system issue, but would that cause the unit to shutdown when sending the refrigerant flow to the FC? Could this be an FC evap fan issue? Any help would be greatly appreciated!
 
Last edited:

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,371
Location
Redmond, Oregon
What was the original problem before you replaced those parts? Was the refrigerator section not cooling properly? Was the freezer section not cooling properly?

Jake
 

Battleborn85

Premium Member
Joined
Dec 8, 2021
Messages
5
Location
Reno
Initial issues - Freezer compartment not cooling. The freezer compartment has never been apart but I can confirm there was some icing up, that was typically handled by changing the defrost cycle to 1time every 8 hrs.
 

Battleborn85

Premium Member
Joined
Dec 8, 2021
Messages
5
Location
Reno
PO error and chime have been a recent development in the last week or so. The inverter is not coding out (blinking) and the compressor operates, winds up and down.... But I can only surmise it's the FC evap fan at this point.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,371
Location
Redmond, Oregon
Unplug the freezer fan motor and see if the PO stop coming on.

Here's the freezer evaporator fan motor assembly for your model: W11249952

Here's the video that shows you how to replace it:

Jake
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,371
Location
Redmond, Oregon
Ok, sounds good, let us know how it goes.:)

Jake
 

Battleborn85

Premium Member
Joined
Dec 8, 2021
Messages
5
Location
Reno
Just installed the new fan. I ran through the aforementioned service test 4.5 and the unit worked flawlessly without any PO alerts. The unit is plugged in and cooling. Will verify everything is working in the morning.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,371
Location
Redmond, Oregon
Excellent, glad to hear that.(y)

Thanks for the update!

Jake
 
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