GE Profile Refrigerator model# CYE23TSDCSS not cooling with replaced MB and Inverter

[Frank_C]

Hi I hope you can help me.  I have a GE Café refrigerator model CYE23TSDCSS is not cooling in the fresh food or freezer sections. Following instructions in tech data sheet, I got the following diagnostic test results:

• 47 FF Fan Test – 3427
• 48 FZ Fan Test – 2499
• 49 Condenser Fan Test – 1663
• 61 Compressor Relay Test – Test Executing
• 95 FF Cooling Test – 75.57
• 96 FZ Cooling Test – 75.52

I replaced the compressor inverter and had the same results.

I then replaced the mother board, and it is not cooling.  

Here are my readings from new main board:

• From the main board, J9 jumper connector 7&8 to inverter, specs say 2-3v: New MB 2.69v - PASS
• When I disconnect control wire to inverter specs say 4-5v:  New MB 4.34v - PASS
• Power to the compressor is 121 VAC
• Tested 3 leads on compressor and all have 6.8 ohms resistance.
• After reconnecting control wire, I feel compressor start up and maintains vibration.

The copper lines to the compressor are not cold.  Only one copper line is slightly cooler than room temperature from the compressor.

I could not attach GE Technical Service Guide #31-9227  - December 2012

Thank you,

Frank

[Metro Appliances]

In my experience, for a not cooling FZ,  if the condenser and evaporator fans are running, compressor is running, the clean condenser coils are within 5-8 degrees of room temperature, and the defrost circuit is not energized, then you seem to be looking at a sealed system leak or restriction. You can confirm this via the evaporator coil frost pattern. Hope this helps! If I'm wrong, or missing something, someone please jump in and correct me!

Edited August 26, 2022 by Metro Appliances

[16345Ed]

19 hours ago, Metro Appliances said:

In my experience, for a not cooling FZ,  if the condenser and evaporator fans are running, compressor is running, the clean condenser coils are within 5-8 degrees of room temperature, and the defrost circuit is not energized, then you seem to be looking at a sealed system leak or restriction. You can confirm this via the evaporator coil frost pattern. Hope this helps! If I'm wrong, or missing something, someone please jump in and correct me!

Agreed.