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SiEN04-306D
Troubleshooting
Service Diagnosis
121
Troubleshooting
Check No.5
Refer to P.140
Check No.6
Refer to P.141
Check No.11
Refer to P.144
Correct.
Reconnect.
Replace the four way valve
coil.
Replace the outdoor unit
PCB.
Reconnect in position.
Replace a defective
thermistor.
Refer to the refrigerant line
check procedure.
Replace the four way valve
(defective or dust-clogged).
(R2845)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Four way valve coil
disconnected (loose)?
YES
YES
NO
Functioning
NO
C
heck No.
11
Check the refrigerant line.
Malfunctioning
z
Insufficient gas
z
Water mixed
z
Stop valve defective
Harness out of connector?
NO
YES
Disconnect the
harness from
the connector.
Resistance between
harnesses about
1500 ohms?
Malfunctioning
Functioning
C
heck No.
5
Check the four way valve
switching output.
YES
NO
Any thermistor disconnected?
Malfunctioning
Functioning
C
heck No.
6
Check the thermistors.
Check the continuity of the four
way valve coil and harness.
Summary of Contents for ARXS50C2VMB
Page 109: ...Instruction SiEN04 306D 100 System Configuration ...
Page 199: ...Outdoor Unit SiEN04 306D 190 Removal Procedure ...
Page 203: ...Others SiEN04 306D 194 Others ...
Page 214: ...SiEN04 306D Wiring Diagrams Appendix 205 FTKD18 24 28BVMS ...
Page 216: ...SiEN04 306D Wiring Diagrams Appendix 207 RKD18 24 28BVMS ...