What causes your condenser to freeze up?
Refrigerant lines can kink, fans can stop moving, filters can become clogged, and things can leak. Any of these things causes a drop in pressure, allowing the refrigerant to expand too much and become too cold. A too-low level of refrigerant is also known to cause freezing up.
What happens when your air conditioner compressor freezes up?
Nearby moisture in warm air condenses on the cooling coils and freezes. That can make the compressor run hot and burn out. The compressor could also freeze up. If it does, indoor air will feel warmer than it should.
When does an air compressor will not stop?
That should take care of the case when an air compressor builds air pressure up past the cut out, and the compressor runs until the PRV lets go. OK, there is another scenario where the air compressor will not stop and just keeps on running.
What are the most common problems with air compressors?
Common Problems With Air Compressors. An air compressor problem could stem from one of many issues, such as an air leak, an oil leak or a broken part. In some cases, you might have insufficient pressurization or air flow.
What happens if the pressure switch does not shut down the compressor?
If the pressure switch does not shut the compressor down at the normal cut out pressure setting, when the tank pressure reaches the PRV set point, the PRV opens and vents the air. If the PRV fails, my friend, you have a real serious problem!
What causes an A / C compressor to freeze up?
A/C compressor won’t cycle, causes evaporator to freeze up. Just installed new a/c compressor. The compressor runs great and pressures are at right levels. When the low side pressure reaches 21 to 23 psi, the compressor should cycle off to prevent freezing, but it doesn’t. The evaporator freezes up blocking air flow.
What kind of car compressor will not cycle off?
This topic contains 2 replies, has 3 voices, and was last updated by EricTheCarGuy 7 years ago. I have a 1997 Saturn SC2. The compressor will not cycle off when the A/C is on.
What happens if you turn off the a C compressor?
A power failure or turning off the breakers will of course shut it off immediately. Restart protection in the thermostat or condenser. It waits to turn on until the high side pressure has dropped down to help unload the compressor at start up. Yeah, I know about the restart protection in the thermostat, as the original post indicated.
What happens when the clutch on a compressor goes bad?
When the switch goes bad, it will no longer be able to measure pressure and will leave the clutch engaged the entire time. This switch is located on the metal canister next to the compressor. It is screwed into the refrigerant canister and has two wires extending from it toward the wiring harness.