Why does my AC not cool when idling?
When the car is a idle it is most likely not moving. The only air moving through the condenser coil is being moved by the engine fan. That is much less air flow than when the car is moving at say 40 MPH. Less air flow means less cooling for the hot refrigerant gas which means, you guessed it, less capacity.
Why does my AC stop working when my car is parked?
Most likely the cooling fan for the condenser is not turning on allowing the high side of the A/C system to get to hot. This reduces the cooling capacity of your system. The cause can be the fan motor, a cycling switch, or a temperature switch depending on the design of the system in your car.
Why does my car air conditioner not work when stopped?
There are several things that can cause electrical problems for your car’s air conditioning. These can include failed switches, a blown fuse, a problem with the control module or something else. Fuses can short out and make the A/C stop working or a loose connection can create an electrical short that is easily fixed.
When should I recharge my AC?
The best indicator that you need to recharge the refrigerant is when the system begins to cool less than it used to, but before it stops cooling completely. When your system doesn’t blow as cold as it once did, you need to have it inspected.
Can you recharge your AC yourself?
You can save about $100 in labor costs by doing the car ac recharge job yourself. Stop at any auto parts store and pick up an R-134a A/C recharging kit. I used the A/C Pro product shown here because it came with a reusable gauge and a quick-connect fitting, and the refrigerant contained a seal conditioner additive.
Why is my AC outside unit not turning on?
The AC unit won’t turn on Usually when the outdoor unit doesn’t turn on, it is because something tripped the circuit breaker. When this happens, you can easily reset it after locating the circuit breaker panel. If you find that the AC unit still does not work, the next place to look is the thermostat.