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SiUS04-924
Troubleshooting
Service Diagnosis
103
Troubleshooting
Check No.04
Refer to P.106
Check No.06
Refer to P.108
(R7149)
Caution
Be sure to turn off the power switch before connecting or disconnecting
the connector, or parts damage may occur.
YES
Malfunctioning
NO
NO
YES
YES
YES
NO
Functioning
YES
NO
NO
YES
NO
NO
YES
* Discharge pipe thermistor
* Indoor / outdoor unit heat exchanger thermistor
* Room temperature thermistor
* Outdoor air thermistor
Check for gas leakage.
Change for a specified amount of
fresh refrigerant.
Check No. 04
Electronic expansion valve
functioning?
Replace in position.
Open the stop valve.
Repair the pipe flare or
replace the square union.
Check the power transistor
harness for looseness.
Correct it as required. Also
replace cracked pipe if any.
Check the pipes for
improper contact. Correct as
required. Also replace
cracked pipe if any.
Replace the electronic
expansion valve.
Replace the room
temperature or outdoor air
thermistor, or the indoor unit
or outdoor unit heat
exchanger thermistor.
(1) Replace the PCB.
(2) Replace the compressor.
Procedure complete
Gas shortage
error again?
Oil oozing at
internal piping?
Stop valve
closed?
Compressor
vibrating too much?
Oil oozing at
relay pipe connections?
Any thermistor
disconnected?
Check No. 06
Check the thermistors.
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 ...