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KRFC704FPS00 KitchenAid not making ice cubes

Strez256

Premium Member
Joined
Jun 25, 2020
Messages
11
Location
Chelmsford MA
Model Number
KRFC704FPS00
Brand
KitchenAid
Age
6-10 years
I ran all the tests and they all passed. I bought a new ice maker and it’s still not calling for water.
 

Jake

Appliance Tech - Admin
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Messages
109,917
Location
McMullen Valley, Arizona
Hi,

First, check the date code on the ice maker P1SM tag.

If it's before 06/22/2017 or the tag is missing, replace the ice maker:
ice maker.jpg

Go back into service mode and run service test 120. If there are no errors wait longer than 60 seconds and run the test again

Service Test - 120 Door Ice Maker self diagnostics
• The display shall show the following transitions as they occur.
00 – Stopped
01 – Moving Counterclockwise to Ice Break Position
02 – Moving Clockwise to End of Harvest Location
• If Ice Bin Is Full Jump To Step 04
• If Timeout Occurs (60 seconds) Execute Step 04
03 – Reached End of Harvest Location
04 – Moving Counterclockwise Back To Homing Location
• If Timeout Occurs (60 seconds) End Test
• The display shall show to the error codes following the execution of the test.
“PA” – All Steps Successfully Passed
“bF” – Ice Bin Is Full
“E1” – Cannot Find Ice Break Position
“E2” – Cannot Find End of Harvest Location
“E3” – Cannot Find Home
“E4” – Multiple Failures

Jake
 

Strez256

Premium Member
Joined
Jun 25, 2020
Messages
11
Location
Chelmsford MA
5/6/2020. Just replaced it yesterday.
What do I need to do when installing the new ice maker. Do I need to run any test to get it started?
 

Jake

Appliance Tech - Admin
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Messages
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You shouldn't need to do anything after you install it.

If its not working perform the Service Test - 120 Door Ice Maker self diagnostics I posted in post #2.

Jake
 
Last edited:

Jake

Appliance Tech - Admin
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Excellent, glad to hear its making ice now.(y)

Thanks for the update!

Jake
 

Strez256

Premium Member
Joined
Jun 25, 2020
Messages
11
Location
Chelmsford MA
Not fixed anymore. Test 120 passed it drops ice. Then when I get out of service mode it calls for water. So I guess what’s going on is it’s not getting the signal to harvest.
 

Jake

Appliance Tech - Admin
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Messages
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Put a freezer thermometer in the ice maker compartment and let it sit there for a couple hours and tell me what it reads, it has to be 16 degrees or lower at all times to make ice automatically.

Jake
 

Strez256

Premium Member
Joined
Jun 25, 2020
Messages
11
Location
Chelmsford MA
Not able to get a freezer thermometer but ran tests shown below
Service Test 14 - Door Ice Box Thermistor
- 32*f
Service Test 16 - Door Ice Maker Tray Thermistor
- 31*f
Service Test 59 – Ice Box Fan Test
- shows “on” and fan runs

During normal operation I don’t hear the fan kick on.
 

Jake

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Ok,

Ice Box (IB) Fan
The IB Fan is a variable speed fan located in the F(freezer)C(compartment). It circulates air from the FC Evaporator area to the IB in the left RC door to maintain temperature at its set-point. For models with an ice maker in the FC, it also circulates air over the FC ice maker.
The IB fan is supplied with constant 12.7 VDC power from Orion board P16-4. The fan is switched On and Off by a 12.7 VDC gating signal from GF2 board P9-2. The gating signal is adjusted based on temperature to change the speed of the fan between HI (3450 rpm) and LOW (1725 rpm).
The IB fan is On any time the FC fan is On. The IB Fan is Off when the FC fan is Off.

Do you hear the fan in the freezer running? If so, the IB fan should be running too.

The IB Fan is located inside the freezer behind the back panel in the freezer.

Jake
 

Strez256

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Joined
Jun 25, 2020
Messages
11
Location
Chelmsford MA
Got someone to look at it. Says defrost for 48 hours. If after a week the freezer goes back to getting warm/frosting up the fan then I will have to replace the control board and defrost heater.
What are your thoughts.
And do you have pointers to replacing the defrost heater is need be.
 

Jake

Appliance Tech - Admin
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Was the freezer evaporator coil completely frosted up badly to where you couldn't hardly see the coils?

Look at the photos below and tell me which one yours looked like.

Frost Patterns.jpg
 

Strez256

Premium Member
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Messages
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Location
Chelmsford MA
I never got a visual myself. But I’m guessing the Tech that looked at it saw the Defrost Problem.
He said he couldn’t see the coils.
 

Jake

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Ok, if that's the case, you have 3 parts that control the auto-defrost cycle. The defrost thermistor, the defrost heater, and the main control board.

Here's the defrost thermistor for your model:
Wire Harness W11204566


Here's the defrost heater for your model: W10882092

Here's the main control board for your model: W11333076

Jake
 

Strez256

Premium Member
Joined
Jun 25, 2020
Messages
11
Location
Chelmsford MA
Thanks for the part list.
when I run test 89 all I get is a quick click. Is that what is suppose to happen or should it stay on?
I’m not able to read 115 vac on my meter.
 

Jake

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Messages
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Service Test - 89 Run FC Defrost Heater
• When entering this Service Test, defrost heater turns on and stays on for 5 minutes or until the evaporator thermistor goes above 60°F.
• “ON” will be displayed while the operation is executed.

The evaporator thermistor has to stay below 60 degrees to keep the defrost heater on. So you can put the evaporator thermistor in a cup of ice water during this test and see if the defrost heater stays on.

Jake
 

Strez256

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Joined
Jun 25, 2020
Messages
11
Location
Chelmsford MA
The freezer is at -13
I run test 89 and I don’t get the “ON” display.
All I get is a click sound once I press “Drawer”
 

Jake

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Ok, that is very odd. It sounds like the control board is the culprit, Its doing too many odd things.

Jake
 

Strez256

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Messages
11
Location
Chelmsford MA
Update. Got the heater to test “on”
But I believe it’s the control board too. Freezer won’t freeze any more. Freezer has been 50-60% full.
 
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