Daikin FTK24AXVJU - Page 91

DAMA-SM-21-001 Troubleshooting
Service Diagnosis 86
Troubleshooting
NO
NG
NO
YES
OK
YES
NG
OK
OK
YES
NO
NO
NG
YES
Four way valve
coil disconnected
(loose)?
Harness
disconnected?
Check the continuity of the four
way valve coil and harness.
Disconnect the harness
from the connector.
Resistance
between
harnesses about
500-2300Ω
Check No. 13
Check the four way valve
switching output.
Any thermistor
disconnected?
Check No. 01
Check the thermistors.
Check No. 14
Check the refrigerant
line.
*) Refrigerant shortage
*) Water mixed
*) Stop valve
Replace the defective
therm istor(s).
Correct the four way
valve coil.
Reconnect the
harness.
Replace the four way
valve coil.
Replace the outdoor
unit PCB (main PCB).
Reconnect the
thermistor(s).
Refer to the refrigerant
line check procedure.
Replace the four way
valve (defective or
dust-clogged).
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Caution