If there is any evidence of leakage around the compressor shaft seal, the seal should also be replaced. ![]() If the magnetic clutch is receiving voltage but is not engaging the compressor, the clutch is defective and needs to be replaced. Here is another link to help troubleshoot the problem But the underlying reason for the fuse blowing in the first place needs to be identified and corrected to prevent the same thing from happening again. If the fuse is blown, replacing it may restore cooling temporarily. If the compressors magnetic clutch is not engaging when the A/C is turned on, the problem may be a blown fuse or a wiring problem. One of the first things you should check, therefore, is compressor engagement. This protects the compressor from possible damage caused by a lack of lubrication. On many systems, the compressor will not turn on if the refrigerant is low because the "low pressure safety switch" prevents the compressor clutch from engaging if system pressure is low. What are other possible causes of the A/C not working. Do you think the A/C control switch assembly is bad? On the control switch when you select A/C the button still lights up as if it were working. It seems like the relay is not getting a power signal when the A/C button is pressed/turned on. Terminal 86 and 87 does not have voltage. When I jump the A/C control relay with a jumper wire the compressor turns on and the a/c blows cold.I checked for voltage at the A/C control relay and at 85 and 30 terminals there is voltage. I have checked the A/C relays and swapped them with same relays. The A/C belt is tight and in good condition. I know the air duct door is working correctly to choose heat or cold.I have checked with a multimeter for power at the compresser, one lead on ground and the other on the plug, I have checked the triple pressure switch and am not getting power to either of them with A/C selected. ![]() When I select the switch for A/C the compressor will not turn on. I have a problem with my A/C, The A/C compressor is not getting voltage.
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