35
9.3.4 Fan speed has been out of control diagnosis and solution(E3)
Error Code
E3/F5
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 MSMBB-12CRDN1-MP0W
Page 7: ...5 2 2 Part names of Indoor Outdoor units ...
Page 9: ...7 For MSMBB 12CRDN1 MP0W For MSMBC 18CRDN1 MP0W For MSMBD 22CRDN1 MP5W ...
Page 13: ...11 MOF1 22CDN1 MP5W ...
Page 25: ...23 ...
Page 32: ...30 MOF1 22CDN1 MP5W ...
Page 36: ...34 9 2 3 Zero crossing detection error diagnosis and solution E2 ...
Page 39: ...37 supply or 50V 115V power supply the PCB must has problems and need to be replaced ...
Page 45: ...43 P W N U ...
Page 46: ...44 N V N W ...