Daewoo DPB-280LH, Service Manual, Page: 41 / 51

40
4
Only Compressor Do not Run
- Check the following at cooling mode
Check the voltage between and
of indoor unit terminal Y
N
Check the voltage between and
of outdoor unit terminal
Y
N
Check the magnetic contactor
Check the wiring of outdoor unit
Check the compressor
(Check the winding resistance)
Check the compressor capacitor
Check the connecting
wire between indoor
and outdoor.
Change the magnetic
contactor.
Change the
compressor.
Check the control P.C.B
the circuit for relay
driving.
Rating voltage
less than 90%
NG
Open or Short
Rating voltage
less than 90%
Rating voltage more than 90%
Rating voltage more than 90%
OK