What happens if you have too much oil in an AC system?
What happens if you have too much oil in an AC system?
Warmer-than-normal box temperatures with capacity losses: Because of the reduced heat transfer in both the condenser and evaporator (caused by excess oil coating the inner tubing), capacity will be decreased. The compressor will run longer trying to maintain a desired box temperature.
What should AC low side high side low pressure be?
On the other hand, there is possibly a huge leak when the pressure is zero. AC Low Side High, High Side Low: Why Does This Happen? The pressure reading from the low side should be between 25 and 30 psi and the high side between 200 and 250 psi.
What should the pressure be on my a / C compressor?
If you think that you have an issue with your A/C system but you are not sure which component is causing the malfunction it is a good idea to hook your compressor up to a pressure gauge. An A/C System that is working properly should have 150 PSI on the high side and 30 PSI on the low side.
What does 150 psi / 30 psi mean?
150 PSI / 30 PSI = There is water in the system. 150 PSI / >10 PSI = Your expansion valve might be stuck open, or there could be a leak somewhere you in your system. 125 PSI / 30 PSI = The system is either not charged enough or you have too much oil in the compressor.
What causes high side pressure and low side pressure?
There is no magic answer for this question though. There are too many variables. Compressor (engine) RPM and airflow across the condenser are always changing, thus engine speed is always affecting pressure. System design, blower speed, mode setting, refrigerant type, all cause variance in high and low side pressure.
What should low side pressure be with compressor off?
No idea what the number would be for a “normal” working system. Not sure on vw but most of the cars ive done ac work on equalize around 50-60psi. When running high side is like 150-175psi low side is between 25-35psi That’s normal with the compressor off. Then watch the pressures when you turn it on.
What should the pressure be on the low side of the AC?
The pressure reading from the low side should be between 25 and 30 psi and the high side between 200 and 250 psi. But if you see the AC low side high, high side low, such as the low side is 100 and the high side is 150, there might be problems with any of the inner components.
150 PSI / 30 PSI = There is water in the system. 150 PSI / >10 PSI = Your expansion valve might be stuck open, or there could be a leak somewhere you in your system. 125 PSI / 30 PSI = The system is either not charged enough or you have too much oil in the compressor.
There is no magic answer for this question though. There are too many variables. Compressor (engine) RPM and airflow across the condenser are always changing, thus engine speed is always affecting pressure. System design, blower speed, mode setting, refrigerant type, all cause variance in high and low side pressure.
