A/C not working... need to replace compressor?
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A/C not working... need to replace compressor?
First tried a re-charge. Then evacuated system, refill and replace dryer. So system is charged and compressor clutch engages and spins. Just no cold air. A different shop said it's the compressor and will replace for $570. Is there anything else I should look at? is the repair price reasonable? thanks in advance for replies.
P.S. Compressor has 110k miles, in 7 years of ownership I never took it for a recharge.
P.S. Compressor has 110k miles, in 7 years of ownership I never took it for a recharge.
#3
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Re: A/C not working... need to replace compressor?
Without seeing what the gauges showed it is impossible to say what the problem is, the first shop, [that did the recharge] should have been able to tell right away what was wrong, there are a few other things that can cause,"no cold air" even if compressor is running, including a low charge, low oil, an over charge, too much oil a defective expansion valve, condensor fan not working, [high head pressure] poor air flow, [plugged or restricted condensor, [also resulting in high head pressure].
If the second shop put gauges on the system and gauges, [high and low sides] showed no or little movement the compressor is toast, if gauges show a large drop on low side and a large increase on the high side or widely fluctuating high an low sides it is unlikely the compressor and more likely the expansion valve or another restriction.
I would take it to a shop that will put it on gauges and let you see what is happening.
$570 is a good price if it includes the recovery, compressor, filter/dryer, [if warranty requires] a nitrogen pressure test, [for at least 1 hr @200 PSI] and the recharge and refrigerant. 94
If the second shop put gauges on the system and gauges, [high and low sides] showed no or little movement the compressor is toast, if gauges show a large drop on low side and a large increase on the high side or widely fluctuating high an low sides it is unlikely the compressor and more likely the expansion valve or another restriction.
I would take it to a shop that will put it on gauges and let you see what is happening.
$570 is a good price if it includes the recovery, compressor, filter/dryer, [if warranty requires] a nitrogen pressure test, [for at least 1 hr @200 PSI] and the recharge and refrigerant. 94
#4
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Re: A/C not working... need to replace compressor?
Without seeing what the gauges showed it is impossible to say what the problem is, the first shop, [that did the recharge] should have been able to tell right away what was wrong, there are a few other things that can cause,"no cold air" even if compressor is running, including a low charge, low oil, an over charge, too much oil a defective expansion valve, condensor fan not working, [high head pressure] poor air flow, [plugged or restricted condensor, [also resulting in high head pressure].
If the second shop put gauges on the system and gauges, [high and low sides] showed no or little movement the compressor is toast, if gauges show a large drop on low side and a large increase on the high side or widely fluctuating high an low sides it is unlikely the compressor and more likely the expansion valve or another restriction.
I would take it to a shop that will put it on gauges and let you see what is happening.
$570 is a good price if it includes the recovery, compressor, filter/dryer, [if warranty requires] a nitrogen pressure test, [for at least 1 hr @200 PSI] and the recharge and refrigerant. 94
If the second shop put gauges on the system and gauges, [high and low sides] showed no or little movement the compressor is toast, if gauges show a large drop on low side and a large increase on the high side or widely fluctuating high an low sides it is unlikely the compressor and more likely the expansion valve or another restriction.
I would take it to a shop that will put it on gauges and let you see what is happening.
$570 is a good price if it includes the recovery, compressor, filter/dryer, [if warranty requires] a nitrogen pressure test, [for at least 1 hr @200 PSI] and the recharge and refrigerant. 94
#5
Old Fart
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Re: A/C not working... need to replace compressor?
If low side did not move then compressor is toast, it should drop to around 15-20 PSI when compressor turns on then back up, [arounf 50 PSI] when compressor turns off, [cycles]. 94
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