Engine Size: 1500
Refrigerant Type: R134a
Ambient Temp: 35 c
Pressure Low: 50
Pressure High: 175
Country of Origin: Sri Lanka
When idling, car at normal temp, the readings are,
low-50psi and high-175psi no cooling.
At 2000 rpm
low - 30psi , high - 220psi
allows good cooling with compressor cut in/out at inside temp 14.5c / 15.5 c, respectively.
No sqeaking sounds and ac belt is tightened properly.
Is the compressor caput? or.......
thanks in advance.
Seems to be working correctly. Make sure you have a proper refrigerant capacity in the vehicle.
Thanks but howcome it does not cool when in traffic/ idling(@900RPM) ?
I looked this up on Internet, so Corsa seems to be cooled by electric fans. Make sure that when the AC is switched on, that ALL the fans are spinning, that's what cools the AC condenser.
Also, at idle rpm are lower, so less refrigerant pumped per minute. Also, less ram effect of air through the evaporator and radiator at idle. So not abnormal for idle performance to be less.
Yes, it's cooled by two electric fans & both are fine. Also agree with you on the less ram effect when idling. But AC was cooling perfectly even at idle.
The issue is a very recently developed one. I have no clue. BTW it's a diesel .
Well, got it top-up by an AC shop. They judge the amount of R134a requird, by the dew on the pipes. Still the same issue at low RPM. They say it's the compressor. Is this a possibility?
The first thing you need to do is recover the freon and put the proper amount in the system.
open orifice is also a problem.
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