Troubleshooting
SiBE04-824
88
Service Diagnosis
4.6
Signal Transmission Error (between Indoor and Outdoor
Unit)
Remote
Controller
Display
U4
Method of
Malfunction
Detection
The data received from the outdoor unit in indoor unit-outdoor unit signal transmission is
checked whether it is normal.
Malfunction
Decision
Conditions
When the data sent from the outdoor unit cannot be received normally, or when the content of
the data is abnormal.
Supposed
Causes
Faulty outdoor unit PCB.
Faulty indoor unit PCB.
Indoor unit-outdoor unit signal transmission error due to wiring error.
Indoor unit-outdoor unit signal transmission error due to disturbed power supply waveform.
Indoor unit-outdoor unit signal transmission error due to breaking of wire in the connection
wires between the indoor and outdoor units (wire No. 3).
Short circuit inside the fan motor winding
Summary of Contents for ATXS35EV1B7
Page 1: ...SiBE04 824 Applied Models z Inverter Pair Heat Pump Inverter Pair Wall Mounted Type E Series...
Page 11: ...Introduction SiBE04 824 x...
Page 12: ...SiBE04 824 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 14: ...SiBE04 824 Specifications 3 Part 2 Specifications 1 Specifications 4...
Page 17: ...Specifications SiBE04 824 6 Specifications...
Page 85: ...Instruction SiBE04 824 74 Operation Manual...
Page 147: ...Check SiBE04 824 136 Service Diagnosis...
Page 227: ...Outdoor Unit SiBE04 824 216 Removal Procedure...