What to do if your AC pressure is low after recharging?
It may be worth checking the pressure once or twice after recharging in case the low refrigerant level was caused by a leak in the system. If you believe there is a leak, get a UV light and some UV dye so you can find the leak. The UV dye will make the hole visible when the UV light is shined onto the A/C components.
What does it mean when your AC pressure is low?
Low and High AC pressures are nearly the same If the compressor is running (center portion of the pulley is turning), the compressor is spinning but not pumping. That’s an indication of a bad compressor. If the center pulley isn’t turning, see this post for diagnostics.
What to do if your AC pressure gauge is not working?
The system is overcharged, there’s a lack of airflow across the condenser (clogged fins, radiator/condenser fans not working or not working at the proper speed), or you have air and moisture in the system. 1. Check the front of the AC condenser (it’s in front of the radiator) to make sure the fins aren’t clogged.
What should the pressure be on an AC charger?
After determining the correct pressures using the ambient air pressure chart, monitor the pressure readings constantly while charging the system. If the system was low, your AC compressor clutch will not engage. You should notice that as the low-side pressure reaches approx. 25-30PSI, that the compressor clutch will engage.
It may be worth checking the pressure once or twice after recharging in case the low refrigerant level was caused by a leak in the system. If you believe there is a leak, get a UV light and some UV dye so you can find the leak. The UV dye will make the hole visible when the UV light is shined onto the A/C components.
After determining the correct pressures using the ambient air pressure chart, monitor the pressure readings constantly while charging the system. If the system was low, your AC compressor clutch will not engage. You should notice that as the low-side pressure reaches approx. 25-30PSI, that the compressor clutch will engage.
What should my air conditioner low pressure be?
Use your air conditioning gauge set to check for adequate levels on both sides. You will attach the low-pressure gauge to the low-pressure fitting and vice versa. On the low-pressure side, you should see readings near 30 PSI when the temperature outside is 90 degrees or less.
How to find a car’s low-pressure service port?
You can easily recharge your car’s air conditioner with A/C Pro and get your car blowing cold air again. To do so, you just need to find the low-pressure A/C service port on your car. In this video, we describe how to find your car’s low-pressure port. If you need help, visit our online port locator: http://bit.ly/R1sGss.