Daikin FTXS09HVJU, Service Manual

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SiUS04-904 Troubleshooting
118 Service Diagnosis
Troubleshooting
Check No.05
Refer to P.145
Check No.06
Refer to P.146
Check No.11
Refer to P.156
(R7272)
Caution
Be s u re to t u rn off the po w er s w itch b efore connecting or disconnecting
the connector, or parts damage may occ u r.
Reconnect.
Replace the fo u r- w ay v al v e
(defecti v e or d u st-clogged).
Replace the fo u r- w ay v al v e
coil.
Replace the o u tdoor u nit
PCB.
Reconnect in position.
Replace a defecti v e
thermistor.
Refer to the refrigerant line
check proced
u re.
Correct.
Check the contin u ity of the fo u r
w ay v al v e coil and harness.
Check No. 05
Check the fo u r- w ay v al v e
s w itching o u tp u t.
Any thermistor
disconnected?
Check No. 06
Check the thermistors.
Check No. 11
Check the refrigerant line.
Disconnect the
harness from the
connector. Resistance b et w een
harnesses a b o u t 1500
Ω
?
Harness o u t of
connector?
Fo u r- w ay v al v e
coil disconnected (loose)?
YES
F u nctioning
YES
N O
N O
N O
F u nctioning
Malf u nctioning
N O
YES
F u nctioning
Malf u nctioning
Malf u nctioning
Refrigerant shortage
W ater mixed
Stop v al v e defecti v e
YES