Daikin K-Series Service Manual page 104

SiBE061121.book Page 94 Monday, April 25, 2011 3:21 PM
Troubleshooting
Troubleshooting
Check No.01
Refer to P.119
Check No.13
Refer to P.122
Check No.14
Refer to P.122
94
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
YES
Four way valve coil
disconnected (loose)?
NO
YES
Harness out of connector?
NO
Check the continuity of the four way
valve coil and harness.
Disconnect the harness from the
connector.
Resistance
NO
between harnesses about
1000 ~ 2000 Ω?
YES
Check No. 13
NG
Check the four way valve
switching output.
OK
YES
Any thermistor
disconnected?
NO
NG
Check No. 01
Check the thermistors.
OK
NG
Check No. 14
Check the refrigerant
∗ Refrigerant shortage
line.
∗ Water mixed
∗ Stop valve
OK
SiBE061121
Correct it.
Reconnect it.
Replace the four way
valve coil.
Replace the outdoor
unit PCB.
Reconnect in position.
Replace the defective
thermistor.
Refer to the refrigerant line
check procedure.
Replace the four way valve
(defective or dust-clogged).
(R14441)
Service Diagnosis