OM 1263 • MICROTECH UNIT CONTROLLER 76 www.DaikinApplied.com
ERROR CODE: E5 – Inverter Compressor Motor Lock
Remote
Controller
Display
E5
Method of
Malfunction
Detection
Inverter PC board takes the position signal from UVW line connected between the inverter
and compressor, and the malfunction is detected when any abnormality is observed in the
phase-current waveform.
Malfunction
Decision
Condition
This malfunction will be output when the inverter compressor motor does not start up even
in forced startup mode.
Supposed
Causes
● Inverter compressor lock
● High dierential pressure (72.5psi or more)
● Incorrect UVW wiring
● Faulty inverter PC board
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