Check whether fuses connected are functioning.
2. Climate Control Switch Issue:
Look for issues in the climate control switches.
3. Wiring Problem:
Check that there are no faults in any of the climate control circuit components, which might cause power supply issues as well.
4. Bad AC Compressor:
A non-working compressor prevents AC circulation
5. Blower Motor Failure:
Check if the AC motor is defective
6. Malfunctioning Sensors:
AC related problems may be traced to sensors like the ambient temperature, engine thermostat, evaporator temperature (EPT), compressor speed & manifold air temperature (MAT) .
7. Refrigerant Loss:
There needs to be a recheck/refill of refrigerants.
