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Frigidaire Ice Maker Feed Tube Freezing

I have a Frigidaire Gallery (Model: FGHB2866PFJA) with the ice maker in cabinet on the LH side. At some point in the past, it stopped making ice. Took it apart, found that the entire defrost assembly was iced over. Some blow dryer work later, started working properly.

Recently it stopped making ice again. Took it back apart, Defrost area was not frozen over. Some slight frost on the condenser tubes, but nothing else. Melted it all, also blew the air onto the feed line port (where it comes into cabinet). This resolved the issue for a couple days.

No ice again, did some checking and found that the water inlet assembly could be going out, letting water drip, which was freezing up. Replaced this, and at same time cleaned all the dust off the coils and such. Also replaced both the filter in basement (in line with feed) and the one in fridge. This worked for several weeks, but yesterday no ice again.

I'm going to check for iced over again, but where else should I look?

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Sir, I apologize. I have the ashamed. I was able to enter the fridge diagnostic mode, and ran said test. Based on the sheet you attached, I should have gotten a different reading when I opened the door, correct? I did not. So that sensor is bad, right? Thank you again for your help.

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Hi @jasondempewolf

Looking at the service data sheet for the refrigerator, there seems to be a ice maker evaporator defrost heater that is used with the ice maker.

Perhaps run diagnostic test #26 (ice maker defrost heater) and check if the heater turns on.

Update (04/23/26)

@jasondempewolf,

They're the diagnostic tests for the ice maker and not the refrigerator

Did you try pressing the ^ and v buttons for 10 seconds at all?

My answer was based on the service data sheet shown on the cover sheet for parts for the model shown by this supplier and this supplier i.e. A01544601. It is also the service data sheet for a FGHB2866PFGA model. but not for a FGHB2866PF model which is 242292100

Both the service data sheets i.e. A01544601 and 242292100, show system diagnostic test #26

Although looking at both of the data sheets, accessing the ice maker diagnostics and the system diagnostics use the same procedure i.e. press the ^ and v buttons. Wonder how to differentiate between them unless it's a misprint and the ice maker is the ^ and + buttons.

Perhaps disconnect the power to the refrigerator and use a DMM (digital multimeter) to test the ice maker heater for continuity. Also test the ice maker defrost thermostat as well

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Maybe I gave the wrong model number. My diagnostic mode is pushing and holding the up arrow and plus sign, and the only diagnostic modes I have are 63, 52, 55, 57, and 58. I did confirm that is the model number on label as well

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@jasondempewolf

If you're referring to test #26, opening the door should not make a difference although it may be better to leave it closed whilst testing.

The test checks the ice maker defrost heater circuit and then depending on whether there's a CL or OP code being displayed by the test it indicates what the problem might be.

If there's always an OP code then there's a problem with the ice maker defrost thermostat (p/n 5303918810 - see part ID #21 for location or the heater element is faulty.

If there's a CL code and the heater is not getting hot, then there's a problem with the heater element in the ice maker

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Jason Dempewolf will be eternally grateful.
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