DAMA-SM-21-003
Troubleshooting
Service Diagnosis
83
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
500-2300
Ω
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
thermistor(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
DAMA-SM-21-003 -Inverter Multi Split-CTX Series.book Page 83 Wednesday, September 1, 2021 5:44 PM
Содержание 2MX18AXVJU
Страница 2: ......