Mitsubishi Electric M Series Installation Manual page 98

Diagnostic
The system has
ANOMALY
or has presented an
Consult the Is the air conditioner Use the
SELF-DIAGNOSIS table working at the moment? FAILURE MODE RECALL function
NO YES
M SERIES SELF-DIAGNOSIS - INDOOR UNIT
SELF-DIAGNOSIS
The indoor unit is not receiving Indoor unit operation indicator
the remote control signal IS FLASHING
Press the
Check
EMERGENCY OPERATION
TRUBLESHOOTING TAB
button.
The indoor unit is working?
YES NO
(Check the remote control
Check that the indoor unit
and the PC board
is powered correctly.
of the indoor unit)
96