44
Airflow restrictions can be caused by any one or more
of the following:
•
Dirty filters
•
Dirty blower wheel, secondary heat exchanger
and/or evaporator
•
Too many registers, grilles and/or balancing
dampers are closed.
•
Dirty, damaged, or poorly constructed ductwork.
All of these issues can be solved by visual inspection
and cleaning. If this does not solve the problem check
the Total External Static Pressure (TESP). If the TESP
is above .8, there is an issue with the ductwork or
filter sizing that must be corrected. After correcting
one or more airflow restrictions, it may be necessary
to adjust the speed selection and/or horse power
selection.
If the diagnostics provided here do not solve your
problem, please go to
thedealertoolbox.com
and download
the full installation manual for further support.
Technical Support is also available on the
Evergreen
®
Hotline at 1-866-503-8566.
IF THE MOTOR IS RUNNING
(continued)
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