Replacing The Motor; Table 5 Troubleshooting Ecm 142R Outdoor Fan Motors - Bard Q36A4DA Installation Instructions Manual

Replacing the Motor

This motor is replaced in one piece. The control cannot
be replaced separately from the motor. Even if the
control is remotely located, the replacement part will
be a new control with harness and new motor.
The correct replacement motor from the manufacturer
that is a direct replacement for the failed motor must
be used.
Using the wrong motor voids all product warranties and
may produce unexpected results.
Always mount the replacement motor and control
according to the manufacturers specifications using
all required hardware to reduce vibration. Make sure
all wires are free of the fan blade and not pinched in
mountings or cabinet through points.
Check line power to motor
Check for 24VAC common signal to
motor (against transformer "R" signal)
TABLE 5
Troubleshooting ECM™ 142R Outdoor Fan Motors
Check between red and black wires for line power
Verify ground by checking green wire to L1 and L2 line power
Check "BR" terminal of fan logic control board
Check blue fan lead on fan relay terminal of defrost logic control
** Is not energized in cooling mode until low ambient fan cycling control is
closed by 325 PSIG refrigerant pressure. Above 65°F outdoors in cooling mode,
the low ambient control is bypassed.
** Circuit is completed automatically when "B" is energized on the fan logic
control board
Manual 2100-752B
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