Why is my low side AC pressure low?
Possibility #2 AC low side pressure is too low because the expansion valve or orifice tube is stuck closed or clogged. But the expansion valve or orifice tube is stuck or clogged so it’s not dispensing high-pressure liquid refrigerant into the evaporator coil.
How much pressure should be on the low side of AC?
The low-side should be near 30 PSI at 90 degrees Fahrenheit or less. Pressure that is too much lower or higher shows there is a problem. On a properly working system, high-side pressure will be about twice the ambient temperature, plus 50 PSI.
What does low high side pressure mean?
Lower Low and High Side Pressures Lower than normal pressures on both high and low side, with the correct amount of refrigerant, could mean a problem building pressure in the system or too much heat is being removed at the condenser. A pressure switch or sensor could be bad.
What should the low side pressure be on 134a?
R134a Pressure Gauge Chart
| Ambient Temperature (°F) | Low Side | High Side |
|---|---|---|
| 90° | 50-55 psi | 250-275 psi |
| 85° | 50-55 psi | 220-250 psi |
| 80° | 45-50 psi | 175-220 psi |
| 75° | 40-45 psi | 150-175 psi |
What does it mean when the low side is high and the high side is low?
If you’re finding that the low side pressure is higher than it should be while the high side pressure is about normal, then you’re probably having an issue with your condenser. Your condenser has a cycle that it goes through in order to allow your air conditioning to run properly.
Why is my air conditioner blowing hot air in my Subaru Outback?
When the air conditioner in your 2000 Subaru Outback starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system.
What to do about a 2000 Subaru Outback air conditioner leak?
When the air conditioner in your 2000 Subaru Outback starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant.
How do you add Freon to a Subaru Outback?
How to add freon to your 2000 Subaru Outback: hook up the can of refrigerant (likely r-134a) to the low pressure port. When your compressor kicks on, add freon to the correct pressure.