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U-Line combo 75 not getting cold

I have a U-LIne Combo 75 that is not getting cold. The light goes on, so I know it has power. How can I tell if it is a compressor or thermostat problem? The thermostat has three wires: Blue, Yellow and Red. If I short any of these wires, will the compressor turn on? Which wires and how long before the compressor turns on? What is the part number of the thermostat if I need to order on?

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  • billb531 May 21, 2009



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The 3 wires is. Yellow on terminal 2 (common) red wire on terminal 1 (icemaker) and Blue on terminal 3(compressor and fan). If you bypass the yellow and blue then the compressor and fan should run. If you bypass the red and yellow then the icemaker will advance. Hope this helps.

Posted on Jun 06, 2009

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Hi there,

i have some procedure in troubleshooting a ref., as follows:

1. check if the compressor will run when you plug the ref in the outlet/power.

a. if the compressor run and it will not produce the cold or heat. then the problem is, the system of your ref. has a leak. it lost all the freon charge into the system. find a near service center in your area.

b. if the compressor run and it stop. unplug your ref. from power.

  • check the capacitor if it is ok, using a multi tester. by determining a good capacitor in resistance test at 100 kilo ohms or 10 kilo ohms the pointer will deflect to right and it will slowly going to left or a higher rating. bad ca[pacitor pointer steady in zero position or infinite.
  • but if the capacitor is ok then some trouble in mechanical parts inside the compressor. specially when you turn on your ref. you feel some surge power from the case of the ref. find a near service center in your area. if you need to replace the compressor and some parts of it.

c. if the compressor will not run, unplug your ref from power and then check the follow:
  • check the compressor resistance by using a multi tester, open the terminal box of the compressor. have some checklist in the terminal setting that has a letter symbol R (running) connected to what color of wire, same also with S (start) and C (capacitor) check in its terminal resistance.

Posted on Nov 29, 2008

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