Troubleshooting
Si10-417
156
Service Diagnosis
Check
No.5-2
Turn off the power and turn it
on again.
Start the heating-mode run.
Replace the outdoor
unit PCB.
Replace the four way
valve coil.
Replace the four way
valve.
∗
Four way valve coil
Cooling / dry : No continuity
Heating : Continuity
YES
YES
NO
S80 voltage
at DC 180-220 V with
compressor on?
(Fig. 1)
Disconnect the four way valve
coil from the connector and
check the continuity.
Four way valve
coil resistance at
3k
Ω
±0.5k
Ω
?
(R3047)
(Fig. 1)
Voltage at S80
DC180-220V
ON
Compressor
Time
NO
Si10-417.fm Page 156 Wednesday, September 22, 2004 6:38 PM
