51
11.2.4 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:
Shut off the power supply
and turn it on 2 minutes
later. Is it still displaying
the error code?
Shut off the power supply,
rotate the fan by hand.
Does it rotate properly?
The unit operates normally.
Find out the cause and
have it solved. For
example, check
whether the fan is
blocked or the bearing
is broken?
Check the wires of fan
motor. Are all the
connections good?
No
Yes
No
Correct the connections.
No
Check whether the main PCB is
normal through index 1?
Yes
Yes
Yes
Replace the fan motor.Is the error
extinguished?
No
Replace the main PCB
No
Summary of Contents for P9VI32-09WF
Page 12: ...10...
Page 13: ...11...
Page 17: ...15...
Page 31: ...29 8 Wiring Diagram 8 1 Indoor Unit P9VI32 09WF P9VI32 12WF P9VI32 18WF P9VI32 24WF...
Page 32: ...30 8 2 Outdoor Unit P9VO32 09 P9VO32 12...
Page 33: ...31 P9VO32 18 P9VO32 24...
Page 44: ...42 Reserve 5 25...