Guide to diagnostics of electronic controls EWM10931
2011 SOE/DT-mdm FCPD-dp Quality-tb
52/75
599 73 77-37
E5H: The Inverter board input voltage is too low (less than 175V)
E5H
The voltage should stay below 175V for at least 5 seconds
E5H
Checks to perform:
Are connectors J9 (main circuit board)
and J1 (motor control board)
properly inserted?
Repair the connectors and repeat the
diagnostic cycle to check for any
further alarms.
Measure the continuity between
connectors J9-1, J9-2 (main circuit board)
and J1-1, J1-2 (motor control board).
Is the wiring ok?
Replace the wiring and repeat the
diagnostic cycle to check for any
further alarms.
Replace the motor control board and
repeat the diagnostic cycle to check
for any further alarms.
Is the appliance working?
Replace the main circuit board and repeat
the diagnostic cycle to check for any
further alarms.
If there are burns on the circuit
board, see page 73
!
Check that all the connectors are correctly inserted
!
NO
NO
NO
Y
E
S
Y
E
S
MAIN CIRCUIT
BOARD
MOTOR CONTROL
MOTOR
0
Ω
Connector -
Motor