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Hi everyone, I'm troubleshooting a warm ac and looking for help. Compressor clutch engages. System pressure was low so I recharged with R134a and a UV dye. no sign of leaking system yet. This morning I took a measurement a few minutes after start up at idle and another 13 minutes later (still idle).
System Temperature and Pressure
Two things that stick out to me are:
-In/Out to condenser temp is the same. There should be a significant temperature drop here.
-There is a 20F difference in air temperature between the driver and passenger ac vents. Is this normal?
Anyone have any recommendations before I go buy a new condenser?
Overcharged the system. Your original pressures were better 34psi is 38 degree evap temp that’s good. And 167 would have been 115 I’m gonna guess your ambient temp is around 80-85 degrees outside give or take? Now you brought it to 204 psi that’s like 135 degree high side too high. And your psi for your low side is decent but looks slightly over charged. As for the weird temp difference from one side to the other that seems like maybe heat is bleeding by your vent not completely closed off to heating. Not a actual ac issue cuz those pressures are pretty perfect.
Thanks for the response. For clarification, I did the system recharge before taking these two measurements. I let the car idle for 5 minutes, took the 9:25 measurement. Then I took another after that at 9:38. Does that change anything or is it actually overcharged?
O ok. If u drive the car does the ac blow cooler? Even with that high side being alil too high you should have better supply temps out the vents 40psi is 44 degrees at the evaporator so all the air going over that is being cooled. So you would expect like 60ish degree discharge. It seems like your getting heat from somewhere else almost like your heating and cooling at the same time.
After driving the car around, I do have good cooling coming from the ac. I'm getting temperatures 35-45 from the ac vents. I continue to monitor the pressure to make sure there is no leak and will update if there are any developments.
06-24-2018, 08:13 AM
Another A/C blows hot air
