It will have two pipes one will be cold and one will be hot if one isn't hot or cold like it supposed to be it will be broken if one is hot and one is cold it is working?
check fuse.
Did you check the AC fluid? That is sometimes the problem.
If your air conditioner is acting up first check to see if the problem may just be that its dirty. If its not working at all then it will be necessary for a repair man.
Time for some new air conditioner guys Check to make sure that the compressor is running Check fuses and switch Check that temperature control is working and set to cold position
Well, you can open it to find out. But mostly, you will know they are not working if the air conditioner blows hot air, or stops working all together.
Check fuse Check to see if any refrigerant in system (pressure test) most likely the problem
A Toyota Echo air conditioner is designed to cool the vehicle. If the air conditioner stops working, it could be low on freon or the motor could have seized.
An air conditioner if functioning as air warmer or air chiller can be called as a type of heat pump. If an air conditioner is working as an air de-humidifier then it no more a heat pump.
air conditioner not working on off switch
It is possible if the circuit breaker has tripped or is faulty. The best way to check is by unplugging the air conditioner, and plugging in a table lamp. If the lamp lights up, then you know that the circuit breaker is working, if not then it is faulty.
The room air temperature increases.
If this is an air conditioner in a home or an apartment, check the circut breaker panel. If this is a automobile air conditioner, check the belt which drives the compressor, and the fusebox for a blown fuse.