aratari2600
Premium Member
- Model Number
- ZISB480DHB
- Brand
- GE
- Age
- 6-10 years
Hello everyone. First up - this form is fantastic and thank you to all of you that help us DIY'ers out here.
I've been reading several prior threads and I have found some great information in them but I wanted to post my own issue since it sounded similar to GE Refrigerator ZISS420DHASS Not Cooling-Failed Control/Sensor test but I believe my evap motor and input voltage is fine, so I don't think its that...
Brief Storyline:
Ever since I have had this fridge, it's been a headache. During the first no-cool event about 2 years after I had the unit, it was still under an extended purchased warranty and the tech just ordered random parts w/out actually doing any diagnostics on the board itself or even putting the fridge into diagnostic mode. Whenever a subsequent no-cool event occurred, the techs would just order parts which would infuriate me because nobody has gotten to the root issue here. So over the course of the year(s), I have gotten 3 new motherboards, a new evaporator fan/motor, and 2 stat cutoffs all from GE directly.
Now in the past few years, I've become very attuned to my fridge and I know when it's going to stop cooling since the compressor and condenser fan is running but I do not hear the evaporator fan on. I have to vacate the entire freezer and fridge, fully de-thaw it and when it starts back up it runs for many months just fine. When this has happened twice over the past year, I would immediately dismantle the freezer section (boy I've become a pro now at this
and look at the evaporator to see if it was a block of ice but it was not.
So this is where I'm at. I've been looking for diag manuals for my specific motherboard (WR55X23124) and in these forms I've found very similar ones posted from Rick in the past (I saw the comment about Rick earlier this year about his illness - I hope he is ok ..). Armed with that and a few other diag manuals that have been posted (but are not quite the same model I have), I've been able to verify voltages to the evap motor and supply to be correct (J2-3 to J2-4 was 12.5v, J2-3 to J2-8 is 13.7v). I've also put my fridge into diag mode and I've run the tests of 02, 03, 07, 15. All pass minus 07. For the 07 thermistor test, I get a P,P,F,F,F. I've been trying to determine if that means my custom cool, evap and freezer thermistors are shot or not and that could potentially be my issue here... When (it's not even a question heh) this occurs again, I want to start probing things to try to figure out why it's stuck (waiting to defrost? thermistor bad reading?).
I did just order 2 GE thermistors for my unit - since the freezer thermistor is easy to get to, I was going to try to replace just that one, run another diag test, and see if I get one of those fails to pass... It's going to be a royal PITA to get up in the freezer compartment to replace the evap thermistor so wanted to do this test first
If anyone has any advice or help - would love to hear it and discuss. Thanks again everyone.
I've been reading several prior threads and I have found some great information in them but I wanted to post my own issue since it sounded similar to GE Refrigerator ZISS420DHASS Not Cooling-Failed Control/Sensor test but I believe my evap motor and input voltage is fine, so I don't think its that...
Brief Storyline:
Ever since I have had this fridge, it's been a headache. During the first no-cool event about 2 years after I had the unit, it was still under an extended purchased warranty and the tech just ordered random parts w/out actually doing any diagnostics on the board itself or even putting the fridge into diagnostic mode. Whenever a subsequent no-cool event occurred, the techs would just order parts which would infuriate me because nobody has gotten to the root issue here. So over the course of the year(s), I have gotten 3 new motherboards, a new evaporator fan/motor, and 2 stat cutoffs all from GE directly.
Now in the past few years, I've become very attuned to my fridge and I know when it's going to stop cooling since the compressor and condenser fan is running but I do not hear the evaporator fan on. I have to vacate the entire freezer and fridge, fully de-thaw it and when it starts back up it runs for many months just fine. When this has happened twice over the past year, I would immediately dismantle the freezer section (boy I've become a pro now at this
and look at the evaporator to see if it was a block of ice but it was not.So this is where I'm at. I've been looking for diag manuals for my specific motherboard (WR55X23124) and in these forms I've found very similar ones posted from Rick in the past (I saw the comment about Rick earlier this year about his illness - I hope he is ok ..). Armed with that and a few other diag manuals that have been posted (but are not quite the same model I have), I've been able to verify voltages to the evap motor and supply to be correct (J2-3 to J2-4 was 12.5v, J2-3 to J2-8 is 13.7v). I've also put my fridge into diag mode and I've run the tests of 02, 03, 07, 15. All pass minus 07. For the 07 thermistor test, I get a P,P,F,F,F. I've been trying to determine if that means my custom cool, evap and freezer thermistors are shot or not and that could potentially be my issue here... When (it's not even a question heh) this occurs again, I want to start probing things to try to figure out why it's stuck (waiting to defrost? thermistor bad reading?).
I did just order 2 GE thermistors for my unit - since the freezer thermistor is easy to get to, I was going to try to replace just that one, run another diag test, and see if I get one of those fails to pass... It's going to be a royal PITA to get up in the freezer compartment to replace the evap thermistor so wanted to do this test first
If anyone has any advice or help - would love to hear it and discuss. Thanks again everyone.
