Ge ziss360drgss not cooling

[NCARepair]

Customer called said fans running but not cooling. Checked and found compressor not running. Measured 115 volts at orange/black supply to inverter. Measured 11vdc at red/white connector on inverter with it disconnected, 6vdc with it connected. Compressor pins all ohm at 6.2. I did these checks using a different model service manual with the same inverter/compressor. I quoted for an inverter but wanted others input regarding my diagnosis as inverters are expensive. Also i would like a sevice manual so i can put it in diagnostics when i return.

Thanks

[kdog]

Sounds like a solid prognosis - check the documents here: http://appliantology.org/files/file/214-ge-monogram-side-by-side-refrigerators-zis-service-manual-set/

[NCARepair]

Thanks kdog for the manual link. Interesting my analog meter read 115 volts at the inverter but my digital meter would not read anything. It worked in the wall outlet next to the ref though and for the dc voltage operations. Perhaps the line filter on the ref kept it from reading correctly. Perhaps batteries maybe. Thanks again.

[Samurai Appliance Repair Man]

The measuerments of the inverter output are meaningless on most meters because it's a pulse width modulated signal, just the supply voltage for the evap and condenser fans. The only test you can do is what you did: check supply voltage to the inverter and check compressor winding resistance. If the compressor windings check good and inverter has good supply, then replace the inverter. BTW, these inverter compressors rarely fail.

[RegUS_PatOff]

do you need the GE 31-9117

ZIS_360DR

service manual ?

that would be ...

click on picture

[NCARepair]

The voltage measurement was taken at the orange/brown supply line to the inverter, not the inverter output. Funny how in the service manual it says twice if you think the compressor is bad to order the compressor and the inverter and if the new compressor does not start, try the inverter.

[NCARepair]

Follow up. Inverter fixed it.