How To Check Ac Compressor Relay. The test light will illuminate if there is power. If there is power going to the power wire, and the trigger wire then your relay is the issue.
At the compressor’s front side, unplug the single wire connector, take a jumper wire and attach it to the wire that you just disconnected from the compressor. Watch at proclaimliberty2000 how to fix your vehicle ac clutch relay and save money.disclaimer: Measure for continuity between pins 30 and 87.there shouldn t be any continuity between these terminals.
Inspect The Wiring And The Plug For Heat Damage And Repair As Needed.
If the switch is not working, then the air is not being filled, and hence the vehicle cannot lift—this needs to be tested by jacking up the vehicle in the air. Examine the oil level in the compressor. However, when the ac pressure switch goes bad, warm air might be all you get.
One Way Of Testing The Compressor Relay Is By Swapping It With A Relay Of The Same Design.
Locate the relay in the power distribution box, usually found under the hood, and unplug it. However, this problem is also caused by low refrigerant levels, which should be. Test for ac compressor clutch function.
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Check the owner’s manual to check the correct. One of the most obvious signs that the ac relay may have a problem is that the compressor is not coming on at all. This will enable the compressor to start manually.
Measure For Continuity Between Pins 30 And 87A.there Should Be Less Than 1Ohm Resistance.
Inside the block where the relay was located, there should be wires that supply the power to the relay. In most cases, when the ac is turned on you will be able to hear the compressor switch on. Remove the old relay from the unit and place your new relay in its place.
The Relay Will Probably Be Screwed Into The Ac Unit.
Connect the other end of the jumper’s wire to the positive terminal of the car battery. At the compressor’s front side, unplug the single wire connector, take a jumper wire and attach it to the wire that you just disconnected from the compressor. To bypass the relay, plug the a/c back in.