WebNov 7, 2024 · If you use R-134a refrigerant in your cars AC system, the ideal range for the low-pressure side of the system is between 25 and 30 psi or 1.3 and 2.1 Bar. High-pressure readings should range between 200 and 250 psi or 13.8 and 17.2 Bar. Readings will vary from car to car based on the manufacturer, make, and model. WebJul 29, 2024 · High pressure side: Generally 225psi but goes down to 210psi after 1/2hr. Static Pressure: 41 psi All measured at approximately 84 deg outside. Temperature at center vent when set temp is lowest and fan is low: 43 - 50 deg The clutch seems to be operating - ie cycles on/off properly.
Ac low pressure side is high and high pressure side is low
WebApr 24, 2010 · Added 134a and the compressor started "Short Cycling". Finally got a guage and with approx. 40psi low side the High side is quickly jumping to >450psi before the high pressure switch custs the compressor off. This only takes about a second or so of compressor run-time for this to occur. Obviously somethiing is stopped up. WebMar 2, 2024 · The function of the AC pressure switch is to provide safety monitoring over the AC system. It is responsible for monitoring the refrigerant pressure on both the low and high-pressure sides of the AC … eagle grand canyon
Problem with A/C and fan and high PSI - Ford Truck Enthusiasts …
WebAug 15, 2009 · Check for restricted Air Flow through the condensor. ( bugs, leaves, trash, mud, ect.) Check the area between the radiator and condensor as well. Check the Fan and fan clutch operation, make sure the fan shroud is intact. Refrigerant overcharge. Air in the system. Scott K, ASE Master Tech/Instructor 1,569 WebFeb 25, 2024 · The reading of 20 psi on the low side and 210 psi on the high side would indicate a restriction somewhere in your ac system. A clogged orifice or expansion valve … WebJun 3, 2013 · If you do not read any pressure with the compressor not running (should be >90 psi!) then it appears you have lost your charge. A low pressure cut-off will prevent the compressor from running in the event of low charge, and "no-charge" will do the same. Possibly one or both of your test valves leaks and allowed the R-134 to get out. csi rubbery homicide imdb