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Troubleshooting
SiUS04-924
90
Service Diagnosis
4.16 Compressor System Sensor Abnormality
Remote
Controller
Display
H0
Method of
Malfunction
Detection
Fault condition is identified by the supply voltage and the DC voltage which is detected before
the compressor startup.
Fault condition is identified by compressor current which is detected right after the compressor
startup.
Malfunction
Decision
Conditions
The detected valve of the supply voltage and the DC voltage is obviously low or high.
The compressor current does not run when the compressor is started.
Supposed
Causes
Reactor disconnection
Compressor disconnection
Outdoor unit PCB defective
Compressor defective
Troubleshooting
Connect properly.
(R7174)
NO
YES
Connect properly.
NO
YES
Replace the reactor.
NO
YES
Replace the compressor or
the compressor relay
harness
Check the operation again
and if the error appears
again, replace the outdoor
unit PCB
NO
YES
Disconnect the reactor from the outdoor
unit PCB and measure the resistance
value between reactor terminals with
tester.
Disconnect the compressor relay harness
from the outdoor unit PCB and use the
tester to measure the resistance value
between the 3 terminals of the compressor.
Caution
Be sure to turn off the power switch before connecting or disconnecting
the connector, or parts damage may occur.
Between each
terminal 10
W
or less?
Compressor connection check
Reactor check
Compressor check
Turn off the power
Reactor connection check
Connection OK?
Connection OK?
10
W
or less?
Summary of Contents for FTXS30HVJU
Page 1: ...SiUS04 924 Applied Models Inverter Pair Heat Pump Inverter Pair Wall Mounted Type H Series ...
Page 8: ...SiUS04 924 List of Functions 1 Part 1 List of Functions 1 List of Functions 2 ...
Page 10: ...SiUS04 924 Specifications 3 Part 2 Specifications 1 Specifications 4 ...
Page 50: ...Control Specification SiUS04 924 Function and Control 43 ...
Page 53: ...Instruction SiUS04 924 46 Operation Manual 2 Instruction 2 1 Remote Controller ...
Page 54: ...SiUS04 924 Instruction Operation Manual 47 operation ...
Page 55: ...Instruction SiUS04 924 48 Operation Manual 2 2 AUTO DRY COOL HEAT FAN Operation ...
Page 56: ...SiUS04 924 Instruction Operation Manual 49 ...
Page 58: ...SiUS04 924 Instruction Operation Manual 51 fins fins fins fins angles Inside ...
Page 60: ...SiUS04 924 Instruction Operation Manual 53 2 5 INTELLIGENT EYE Operation fins above ...
Page 61: ...Instruction SiUS04 924 54 Operation Manual ...
Page 62: ...SiUS04 924 Instruction Operation Manual 55 2 6 POWERFUL Operation ...
Page 63: ...Instruction SiUS04 924 56 Operation Manual 2 7 OUTDOOR UNIT QUIET Operation ...
Page 64: ...SiUS04 924 Instruction Operation Manual 57 2 8 ECONO Operation ...
Page 65: ...Instruction SiUS04 924 58 Operation Manual 2 9 TIMER Operation ...
Page 66: ...SiUS04 924 Instruction Operation Manual 59 ...
Page 69: ...Instruction SiUS04 924 62 Operation Manual ...
Page 70: ...SiUS04 924 Instruction Operation Manual 63 ...
Page 71: ...Instruction SiUS04 924 64 Operation Manual ...
Page 72: ...SiUS04 924 Instruction Operation Manual 65 3P228444 2B ...
Page 193: ...SiUS04 924 187 Appendix Part 9 Appendix 1 Piping Diagrams 188 2 Wiring Diagrams 189 ...