EN - 19
A5
Malfunction in the
bypass motor
Remove the filter caps
from the ComfoAir.
Release the front panel
by unscrewing
the screws.
Lift the front panel
from its hinges.
Remove the plastic
panel in front of
the control
circuit board.
Activate the self-test.
(P76 on 1)
Did the
bypass
motor run
Yes
Disconnect the
power from
the ComfoAir.
Replace the
control circuit
board.
Remove the
motor
Disconnect the
power from
the ComfoAir.
Is the cog of
the motor
defective?
Yes
No
Replace the cog
of the motor
Replace the
motor
Was there
8 VDC power
present on the
motor?
Yes
Disconnect the
power from
the ComfoAir.
Replace the
motor
No
No
