Why does my AC stop working at high speed?
The A/C thermal expansion valve (TXV) most likely is the cause of the A/C system freezing up at higher engine or vehicle speeds. The A/C system should be performance tested and checked for pressures to make sure the system has enough refrigerant or the TXV is the cause of the problems.
Does AC fan speed affect cooling?
So if you are running a fan at low speed it gives the compressor and cooling coil time to dehumidify the air rather than just cool it. On high temperature low humidity days running the fan at a higher speed will allow the air to cool down faster and reduces the air conditioner’s ability to dehumidify.
What should be the AC fan speed?
For your furnace and AC to work properly, and keep humidity in check, your system first needs to be sized correctly. Second, it needs to be installed correctly, and fan speeds need to be set to deliver CFMs between 350 and 400 CFM/ton of cooling. Finally, controls should be in place to optimize the equipment used.
When does your car’s AC blows warm at stops?
When a car’s ac blows warm at stops a common problem is the air conditioning condenser cooling fan. http://wiseautotools.com/ac-service-t… Loading…
What causes an air conditioner fan to slow down?
A capacitor that is malfunctioning or failing can cause the fan’s motor to slow down and/or overheat. In most cases like this, the run capacitor needs to be replaced. Every part of your air conditioner is going to experience wear-and-tear, but there are things that can be done to extend the life of the fans in your system.
Why does my car turn off the AC at normal cruising rpm?
If your TPS is not not sensing the position of your throttle properly, it will definately turn off your AC at normal cruising RPM. My car does that when I am trying to floor the paddle but in normal mood, it keeps cooling even at 120+ km/hr.
What to do when your car AC is running?
Check the radiator fans to make sure at least one fan turns one when the AC is switched on. However, some cars operate both fans at low speed while driving and switch into high speed mode when the AC is running. So get tricked into thinking your fans are ok simply because they’re running.