Matt for Model Number GD5SHAXNB00 I have Whirlpool side by side refrigerator (model # GD5SHAXNB00) that was given to me after it had been working on and off and eventually replaced. After researching I learned that it was common for the OEM control board to burn out if a light bulb burned out. I checked that and found a transistor and pathway that had burned out. It has now been replaced, but is still not cooling sufficiently. The compressor runs, I cleaned the condenser coils, there's no ice buildup in the freezer, and the air ducts are clear (although the air diffuser assembly part # AP4327308 is broken I can manually adjust it). When plugged in the evaporator coil only frosts down the first expansion tube down to the bottom of the coil but does not frost beyond the first bend. I removed the thermistor and tested it with a multimeter and observed the following; room temp 3.72k ohms, ice water 8.79k ohms. I read elsewhere, but for a different brand, that it should read something closer to 6.2 and 16.3 k ohms respectively. Do those numbers also apply to my whirlpool indicating I need a new one? Also, there's been twice that I noticed after unplugging the unit a couple of bubbles form from under the shrink tubing where the expansion tubing first connects to the evaporator coil pack. Is this possibly a coolant leak, or maybe just air under the shrink tubing expanding and bubbling out? Basically, how do I tell it it's an actual coolant leak? Thanks for your help!
Answer Hello Matt. Either it is restricted or there is a leak. You will need HVAC gauges to read the pressures on the system to find the problem. Read More... Answered by AppliancePartsPros.com | Wednesday, January 22, 2014