26
Model X13
®
& Endura
®
Pro
Standard ECM Motor Diagnostics
See the Motor ID Chart on page 7
if needed.
It is normal for the motor to rock back and forth
on start up. Do not replace the motor if this is
the only problem identified.
If the system is excessively noisy, does not appear
to change speeds in response to a demand (Heat
or Cool), or is having symptoms during the cycle
such as a tripping limit or freezing coil, check the
following:
Wait for programmed delays to time out.
If delays are too long, reset them using the
manufacturer’s charts.
Ensure the airflow settings are correct for the
installed system using the manufacturer’s charts.
If the system is operating normally in each mode,
there is no problem.
Remove the filter and check that all of the
dampers, registers, and grills are open and
free flowing. If removing the filter corrects the
problem, clean or replace with a less restrictive
filter. Also check and clean as needed the blower
wheel, secondary heat exchanger (if applicable)
and evaporator coil (if applicable).
If this does not correct the problem then:
Check the external static pressure. If it is
higher than the manufacturer’s recommendations,
correct the airflow restriction.
IF THE MOTOR IS RUNNING
1.
2.
X13 &
ENDURA
PRO MOTORS
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