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Troubleshooting
Si12-619A
242
Service Diagnosis
Troubleshooting
Check No.06
Refer to P.263
P4
: Radiation fin thermistor
J3
: Discharge pipe thermistor
J6
: Outdoor heat exchanger thermistor
J8
: Liquid pipe thermistor
J9
: Gas pipe thermistor
H9
: Outdoor temperature thermistor
Turn on the power again.
Reconnect.
Reconnect.
Replace defective one(s) of
the following thermistors.
z
Radiation fin thermistor
z
Discharge pipe
thermistor
z
Outdoor unit heat
exchanger thermistor
z
Liquid pipe thermistor
z
Gas pipe thermistor
z
Outdoor temperature
thermistor
Replace the following
thermistor.
z
Indoor unit heat
exchanger thermistor
Replace the outdoor unit
PC board. (Replace the
indoor unit PC board.)
(R4718)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Error displayed again
on remote controller?
NO
YES
YES
YES
NO
Indoor unit
heat exchanger thermistor
functioning?
NO
Connector or thermistor
disconnected?
NO
YES
J3 error if discharge pipe
thermistor temperature is
smaller than condenser
thermistor temperature
Cooling: Outdoor unit heat
exchanger thermistor
Heating: Indoor unit heat
exchanger thermistor
Normal?
C
heck No.
06
Check the thermistor resistance
value.
C
heck No.
06
Check the indoor unit heat
exchanger thermistor resistance
value in the heating mode.
Summary of Contents for 3MKS50DVM
Page 13: ...Introduction Si12 619A xii ...
Page 131: ...Control Specification Si12 619A 118 Function and Control ...
Page 213: ...Instruction Si12 619A 200 Operation Manual ...
Page 283: ...Check Si12 619A 270 Service Diagnosis ...
Page 302: ...Si12 619A Outdoor Unit E Series 50 52 58 Class Removal Procedure 289 Step Procedure Points ...
Page 385: ...Wiring Diagrams Si12 619A 372 Appendix FTK X S50 60 71FVLT ...
Page 399: ...Si12 619A vi Index ...