Troubleshooting
SiBE12-519
150
Service Diagnosis
Troubleshooting
Check No.05
Refer to P.172
Check No.06
Refer to P.173
Check No.11
Refer to P.176
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).
(R4699)
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
3k
Ω
±0.5k
Ω
?
Malfunctioning
Functioning
C
heck No.
05
Check the four way valve
switching output.
YES
NO
Any thermistor disconnected?
Malfunctioning
Functioning
C
heck No.
06
Check the thermistors.
Check the continuity of the four
way valve coil and harness.
Summary of Contents for 2MKS40DVMB
Page 10: ...SiBE12 519 List of Functions 1 Part 1 List of Functions 1 Cooling Only 2 2 Heat Pump 4 ...
Page 15: ...Heat Pump SiBE12 519 6 List of Functions ...
Page 29: ...Heat Pump SiBE12 519 20 Specifications ...
Page 135: ...Instruction SiBE12 519 126 System Configuration ...
Page 211: ...Outdoor Unit SiBE12 519 202 Removal Procedure ...