48
Air conditioner does not operate.
2) SYSTEMATIC CHART OF “TROUBLESHOOTING”
Circuit breaker trips (or
fuse blows).
When circuit breaker is
set to ON, it trips in a
few moments.
Circuit breaker trips in
several minutes after
turning air conditioner
ON.
Power is not supplied.
Check drain pump and
drain hose.
Function of compressor
winding protection
works.
Indoor unit sensor are
defective.
Open or short circuit.
Limit float switch has
operated “OPEN”.
Check power supply.
Neither indoor unit nor
outdoor unit runs.
Measure insulation
resistance of power
supply wires.
Check capacity of circuit
breaker. Meaure
resistance of electrical
components.
Reposition the indoor
unit.
Indoor unit installed
upside - down.
