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ZISS420DRISS GE Monogram Freezer -4F Ref 42F


Premium Member
Mar 5, 2023
Model Number
More than 10 years
I have a ZISS420DRISS GE monogram Freezer -4F Ref 42F. I noticed the damper door is shut close and bottom fan behind chill draw will not start. I have tried to put the Monogram in diagnostic mode by pressing the 4 buttons at the same time but it beeps and temp will not change. I have unplugged the device still doesn't let me start diagnostic mode. I was able to open the damper a bit the let the freezer air in the ref overnight. Please let me know what I should do. I am a novice and don't have a OLMs reader. In the ref on the top left corner was condensation.
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I could not locate the exact service manual for this model.

These threads all relate to the problem you're having. Hopefully that will help you.

Thank you! I had already read those. I cannot get it to enter diagnostic mode.
Then its possibly either the HMI/temp control board part WR55X10159 which is no longer available or the main motherboard.

Here's the main motherboard for your model:
Main Control Board WR55X10560

Rick @rickgburton is the expert on these build-in models, but he's been out sick for awhile and I don't know when he will return. I very little experience with build-in models, so hopefully another tech or member that's seen this problem and fixed it can shed some light on this issue.

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