the a/c system has a pressure sensor to it, it's on the accumilator @ the rear of the eng compartment. try using a wire to jump it if the a/c works after that tere is your prob
Check the following........ 1. Clutch coil wire harness for proper connection. 2. Power and ground to the clutch coil wire harness. 3. Pressure switches.....
Maybe the compressor clutch is not being sent power from the switch in the cab. I'd yank the panel out and have a look at the switch. FriPilot
The place where the power drop from the electric company enters your house. The service panel is where the fuses or breaker switches are.
Mabe your compressor is not kicking on for some reason. Check to see if the front of your compressor starts spinning when you turn it on. If it don't check to see if there is power to the wires that go to your compressor. If there is power you have a bad compressor. If there is not check the fuses or relays.
sometimes the window switches are bad and burnt and then finally the motor but first check the power at the switches.
blown fuses, dirty switches, bad relay, broken poer lead to switches.
check your relay or your fuses. if the fuses are good replace the relay (under 10 bucks) if things still don't work try replacing your switches.
Check fuses, relays switches etc. Probably best to get a wiring diagram and follow the circuit.
Check the lite bulb it is OK check if there is power at the lite when you press peddle/lever.If no power check brake switches and fuses as well as connections on wires.
Circuit breakers do the same thing as fuses. They interrupt current flow when a certain preset point is reached. The difference between circuit breakers and fuses are that circuit breakers are resettable and reusable, whereas fuses are one time devices that must be replaced after they blow.
Check the following.......... 1. Power and ground to the compressor clutch coil.. 2. Pressure switches and relays.. 3. A/C -heater controller.. Without the year, make and model its very hard to narrow it down..
Check all possible power sources to the unit, Circuit breaker ,local on/off switches, emergency on/off switches if present, cabinet cover interlock switches on the indoor unit and lastly the fuses in the local disconnect switch near the condenser. If everything is closed and you have power to both units indoors and out and still have nothing, it`s time to call somebody.