Whirlpool WRF767SDHZ - Icemaker not working and running too warm

[jdke]

My in-door icemaker ran out of ice, so I ran service test 56 from this guide: https://f01.justanswer.com/MatthewR0330/dbef87ab-01f1-43eb-9776-3ae7649a1b32_WRF736SDAM.pdf

It came back with an E5, which apparently means "IM Bad Thermistor,  Ice Storage temp satisfied but Ice Mold in frozen state to long.  Possible an ice mold thermistor issue."  

My question is if there is more than one thermistor in the fridge? Based on this parts list, the only thermistor I see is in the freezer liner, but the error code seems to indicate it's in the icemaker itself. 

I will also note that I turned on the icemaker in the freezer, and it is working fine, so it is only the one in the in-door that is not working. Also, both the fridge and freezer are running too warm. The fridge is around 41-42 and the freezer around 9-10. These were set at 39 and 0 respectively, so I turned them both down a couple degrees, but it's had no effect. 

[Ettish]

WRF767SDHZ03

Bought new, worked fine for 8 months then stopped producing ice. Test 56 showed EO (no errors) for several days. I've replaced water filter then flushed, cleaned coils, unplugged unit multiple times, ran several forced defrosts both Lo and Sh, and troubleshot through every diagnostic mode service test countless times. Still no ice after after almost a week but service test 56 has changed from EO to E5 and test 59 changed from 01 to 02.

Results of most recent diagnostic tests below:

1 - 01
2 - 01
3 - 01/02 Felt Fan
4 - 01/02 Heard Compressor on/off
6 - 01
7 - 01
8 - LEDs Passed
9 through 17 - Skipped
18 - Passed
19 - 01/02 Toggled, nothing observed
20 through 31 - Skipped
32 - 01
33 - 38
34 - 01
35 - 01/02 Toggled, nothing observed
36 - 01
37 - 01
38 - Ran both Sh and Lo
40 - 01/02 Toggled, nothing observed
41 through 44 - Skipped
45 - 02/03/02 Heard Water Fill. Successfully completed the 57 Harvest test prior
46 - Success, Hand Wet
56 - E5 = Ice Maker Thermositer is bad. Ice storage temperature satisfied but ice mold in frozen state too long. Possible ice mold thermistor issue.
57 - 01
58 - 00/10 = Temperature is cooler than harvest temperature
59 - 10/02 then went 30/01 and retried, same results, harvest did not complete when rotating clockwise

Fridge/Freezer temps were on factory recommended settings (37/0). Both Ice makers stopped producing ice. Changed settings to 33/-5. Remaining ice stayed cold and did not melt, despite fridge/freezer temperatures becoming noticeably warmer. Service Test 56 showed EO = no errors for past three days and still did not make ice. Test 59 would complete successfully.

Now, three days into troubleshooting, unplugging several times for 10 minutes at a time, and running more than 5 auto defrosts, its showing E5 error and wont complete the harvest for test 59.

[jdke]

Update - it appears to be cooling properly. I took something out of the fridge that felt super cold, so I put a different thermometer in and it reads that the fridge is at 39 and the freezer at 1, so they're slightly above what they're set to, but those are the temps I want, so I doubt it's related to the icemaker issue. 

[Nathaniel Peterson]

2 hours ago, jdke said:

Update - it appears to be cooling properly. I took something out of the fridge that felt super cold, so I put a different thermometer in and it reads that the fridge is at 39 and the freezer at 1, so they're slightly above what they're set to, but those are the temps I want, so I doubt it's related to the icemaker issue. 

Iceaker has a thermistor either in ice maker or in line with ice maker wiring. If it's in the ice maker wiring you may be able to replace it. Look under ice maker parts on parts diagram.

[jdke]

21 hours ago, Nathaniel Peterson said:

Iceaker has a thermistor either in ice maker or in line with ice maker wiring. If it's in the ice maker wiring you may be able to replace it. Look under ice maker parts on parts diagram.

Thanks. I'll get into the icemaker and see what I can see. 

[Nathaniel Peterson]

3 hours ago, jdke said:

Thanks. I'll get into the icemaker and see what I can see. 

You'll see it alongside the wiring once you take out the ice maker. Small screwdriver to remove on icemaker side if it's the replaceable version. Dunk it in an ice water bath and check the resistance.  You can Google Whirlpool thermistor chart and one from here will pop up or do a search here to find it. If you have a meter. Might have to Google thermistor chart since you're diy.