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Problem Symptoms and Measures
SiUS04-702
118
Service Diagnosis
2.
Problem Symptoms and Measures
Symptom
Check Item
Details of Measure
Reference
Page
None of the units operates. Check the power supply.
Check to make sure that the rated voltage is
supplied.
—
Check the type of the indoor units.
Check to make sure that the indoor unit type is
compatible with the outdoor unit.
—
Check the outdoor air temperature.
Heating operation cannot be used when the
outdoor air temperature is 64.4°F or higher
(only for heat pump model), and cooling
operation cannot be used when the outdoor air
temperature is below 14°F.
—
Diagnosis with remote controller
indication
—
Check the remote controller
addresses.
Check to make sure that address settings for
the remote controller and indoor unit are
correct.
—
Operation sometimes
stops.
Check the power supply.
A power failure of 2 to 10 cycles can stop air
conditioner operation. (Operation lamp OFF)
—
Check the outdoor air temperature.
Heating operation cannot be used when the
outdoor air temperature is 64.4°F or higher
(only for heat pump model), and cooling
operation cannot be used when the outdoor air
temperature is below 14°F.
—
Diagnosis with remote controller
indication
—
Equipment operates but
does not cool, or does not
heat (only for heat pump
model).
Check for wiring and piping errors in
the indoor and outdoor units
connection wires and pipes.
Conduct the wiring/piping error check described
on the product diagnosis nameplate.
—
Check for thermistor detection errors. Check to make sure that the main unit’s
thermistor has not dismounted from the pipe
holder.
—
Check for faulty operation of the
electronic expansion valve.
Set the units to cooling operation, and compare
the temperatures of the liquid side connection
pipes of the connection section among rooms to
check the opening and closing operation of the
electronic expansion valves of the individual
units.
—
Diagnosis with remote controller
indication
—
Diagnosis by service port pressure
and operating current
Check for insufficient gas.
Large operating noise and
vibrations
Check the output voltage of the
power transistor.
—
Check the power transistor.
—
—
Check the installation condition.
Check to make sure that the required spaces
for installation (specified in the Engineering
Data book Guide, etc.) are provided.
—
Summary of Contents for FTXS09DVJU
Page 1: ...SiUS04 702 Applied Models z Inverter Pair Heat Pump Inverter Pair Wall Mounted Type D Series...
Page 12: ...SiUS04 702 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 14: ...SiUS04 702 Specifications 3 Part 2 Specifications 1 Specifications 4...
Page 76: ...SiUS04 702 Instruction Operation Manual 65 2 2 FTXS09 12DVJU 2 2 1 Names of Parts...
Page 77: ...Instruction SiUS04 702 66 Operation Manual...
Page 78: ...SiUS04 702 Instruction Operation Manual 67...
Page 79: ...Instruction SiUS04 702 68 Operation Manual 2 2 2 Preparation before Operation...
Page 80: ...SiUS04 702 Instruction Operation Manual 69...
Page 81: ...Instruction SiUS04 702 70 Operation Manual...
Page 82: ...SiUS04 702 Instruction Operation Manual 71 2 2 3 AUTO DRY COOL HEAT FAN Operation...
Page 83: ...Instruction SiUS04 702 72 Operation Manual...
Page 84: ...SiUS04 702 Instruction Operation Manual 73 2 2 4 Adjusting the Airflow Direction...
Page 85: ...Instruction SiUS04 702 74 Operation Manual...
Page 86: ...SiUS04 702 Instruction Operation Manual 75 2 2 5 POWERFUL Operation...
Page 87: ...Instruction SiUS04 702 76 Operation Manual 2 2 6 OUTDOOR UNIT QUIET Operation...
Page 88: ...SiUS04 702 Instruction Operation Manual 77 2 2 7 HOME LEAVE Operation...
Page 89: ...Instruction SiUS04 702 78 Operation Manual...
Page 90: ...SiUS04 702 Instruction Operation Manual 79 2 2 8 INTELLIGENT EYE Operation...
Page 91: ...Instruction SiUS04 702 80 Operation Manual...
Page 92: ...SiUS04 702 Instruction Operation Manual 81 2 2 9 TIMER Operation...
Page 93: ...Instruction SiUS04 702 82 Operation Manual...
Page 94: ...SiUS04 702 Instruction Operation Manual 83 2 2 10 Care and Cleaning...
Page 95: ...Instruction SiUS04 702 84 Operation Manual...
Page 96: ...SiUS04 702 Instruction Operation Manual 85...
Page 97: ...Instruction SiUS04 702 86 Operation Manual...
Page 98: ...SiUS04 702 Instruction Operation Manual 87...
Page 99: ...Instruction SiUS04 702 88 Operation Manual...
Page 100: ...SiUS04 702 Instruction Operation Manual 89 3P141693 1K...
Page 101: ...Instruction SiUS04 702 90 Operation Manual 2 3 FTXS15 18 24DVJU 2 3 1 Names of Parts...
Page 102: ...SiUS04 702 Instruction Operation Manual 91...
Page 103: ...Instruction SiUS04 702 92 Operation Manual...
Page 104: ...SiUS04 702 Instruction Operation Manual 93 2 3 2 Preparation before Operation...
Page 105: ...Instruction SiUS04 702 94 Operation Manual...
Page 106: ...SiUS04 702 Instruction Operation Manual 95...
Page 107: ...Instruction SiUS04 702 96 Operation Manual 2 3 3 AUTO DRY COOL HEAT FAN Operation...
Page 108: ...SiUS04 702 Instruction Operation Manual 97...
Page 109: ...Instruction SiUS04 702 98 Operation Manual 2 3 4 Adjusting the Airflow Direction...
Page 110: ...SiUS04 702 Instruction Operation Manual 99...
Page 111: ...Instruction SiUS04 702 100 Operation Manual 2 3 5 POWERFUL Operation...
Page 112: ...SiUS04 702 Instruction Operation Manual 101 2 3 6 OUTDOOR UNIT QUIET Operation...
Page 113: ...Instruction SiUS04 702 102 Operation Manual 2 3 7 HOME LEAVE Operation...
Page 114: ...SiUS04 702 Instruction Operation Manual 103...
Page 115: ...Instruction SiUS04 702 104 Operation Manual 2 3 8 INTELLIGENT EYE Operation...
Page 116: ...SiUS04 702 Instruction Operation Manual 105...
Page 117: ...Instruction SiUS04 702 106 Operation Manual 2 3 9 TIMER Operation...
Page 118: ...SiUS04 702 Instruction Operation Manual 107...
Page 119: ...Instruction SiUS04 702 108 Operation Manual 2 3 10 Care and Cleaning...
Page 120: ...SiUS04 702 Instruction Operation Manual 109...
Page 121: ...Instruction SiUS04 702 110 Operation Manual...
Page 122: ...SiUS04 702 Instruction Operation Manual 111 2 3 11 Troubleshooting...
Page 123: ...Instruction SiUS04 702 112 Operation Manual...
Page 124: ...SiUS04 702 Instruction Operation Manual 113...
Page 125: ...Instruction SiUS04 702 114 Operation Manual 3P141693 2K...
Page 191: ...Check SiUS04 702 180 Service Diagnosis...
Page 293: ...Others SiUS04 702 282 Others...
Page 305: ...SiUS04 702 vi Index...