Four Way Valve Performance Check; Inverter Unit Refrigerant System Check - Daikin K-Series Service Manual

SiBE061121.book Page 122 Monday, April 25, 2011 3:21 PM
Check
5.5

Four Way Valve Performance Check

Check No.13
5.6

Inverter Unit Refrigerant System Check

Check No.14
122
Turn off the power and turn it on
again.
∗ Four way valve coil
Start heating operation.
S80
NO
voltage at 220 - 240
VAC with compressor
on? (Fig. 1)
YES
Disconnect the four way valve coil
from the connector and check the
continuity.
Four way
NO
valve coil resistance at
1000 ~ 2000 Ω?
YES
(Fig. 1)
Voltage at S80
220 - 240 VAC
Compressor
ON
Refrigerant system check
Is the
discharge
YES
pipe thermistor
disconnected from the
holder?
NO
Check for refrigerant leakage.
See the service diagnosis on
refrigerant shortage (U0).
Cooling / Dry : No continuity
Heating : Continuity
Time
SiBE061121
Replace the outdoor unit
PCB.
Replace the four way valve
coil.
Replace the four way valve.
(R11903)
(R11904)
Place the thermistor.
Replace the refrigerant.
(R8259)
Service Diagnosis