Signal Transmission Error (Indoor Unit - Outdoor Unit) - Daikin E Series Service Manual
Inverter pair wall mounted type e-series
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- Service manual (453 pages) ,
- Technical manual (73 pages) ,
- Installation manual (29 pages)
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Troubleshooting
2.14 Signal Transmission Error (Indoor Unit - Outdoor Unit)
U4
Remote
Controller Display
Method of
The data sent from the outdoor unit is checked for problem.
Malfunction
Detection
Malfunction
When the data sent from the outdoor unit can not be received without error, or when the disable
status of signal transmission continues for 15 sec. and the same status continuously repeats 3
Decision
times.
Conditions
Supposed
Causes
160
Defective outdoor unit PCB
Defective indoor unit PCB
Signal transmission error between indoor and outdoor unit due to improper wiring
Signal transmission error between indoor and outdoor unit due to breakage of relay wire
(transmission wire)
SiBE04-624
Service Diagnosis
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Troubleshooting
