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9.3.4 Fan speed has been out of control diagnosis and solution(E3)
Error Code
E3
Malfunction decision
conditions
When indoor fan speed keeps too low (300RPM) for certain time,
the unit will stop and the LED will display the failure.
Supposed causes
●
Wiring mistake
●
Fan ass’y faulty
●
Fan motor faulty
●
PCB faulty
Trouble shooting:
Summary of Contents for MROHC09AS
Page 14: ...12 5 Wiring Diagram 5 1 Indoor Unit MWOHC09S MWOHC12S MWOHC18S ...
Page 15: ...13 MWOHC24S ...
Page 16: ...14 5 2 Outdoor Unit MROHC09AS MROHC12AS ...
Page 17: ...15 MROHC18AS ...
Page 18: ...16 MROHC24AS MROHC09AS MROHC12AS ...
Page 19: ...17 MROHC18AS ...
Page 29: ...27 T2 7 C 44 6 F the compressor frequency will not be limited ...
Page 53: ...51 Take the 9k model as example P V P U ...
Page 54: ...52 N U P W ...
Page 55: ...53 N W N V ...