MCAC-RTSM-2012-01 M-thermal Technical Manual (part 2)
F. "E6": Direct-current fan error
Method of
malfunction
detection
Check whether the wire connection is correct.
1. Fan wire is not connected well or correctly
2. Fan dose not run due to some matter tangled
3. Malfunction of the outdoor unit main board
4. Blowout of fuse
Measure the voltage, is at
Check the fan motor connector
correctly connected to the
outdoor main board
Is there any matter around the
fan?
Properly connect the connector
Wait or use a voltage regulator
Remove the motor
connector
Check the resistance value of the
motor
Is the fan ratable easily by hand?