47
Symptom:
IF THE MOTOR IS RUNNING
If the motor is running but there is an airflow issue
causing improper performance, undesired comfort or
HVAC System failure, check the following:
Step 1.
Check all of the airside components such as
registers, diffusers, grilles, filters, blower wheel, and
indoor coil for dirt or other restrictions. Check filter
sizing, especially aftermarket filters.
Clean any dirt or debris on the airside components.
Open and clear all registers, diffusers and grilles.
Replace filters with proper size according to
manufacturer specs. Aftermarket filters may need
to be larger than the original specs. If this does not
correct the problem go to step 2.
Step 2.
Confirm that the proper speed tap has been
selected for the proper demand by checking the
airflow using one of the methods covered in the
“Airflow Tests” section of the Evergreen
®
AH manual. This manual can be downloaded from
thedealertoolbox.com.
If the airflow needs to be increased or decreased,
select the speed tap that produces the proper airflow
for the system tonnage.
YEL HIGH
BRN MED
-
LOW
ORN LOW
GRN CONST FAN
BLU 24V COM
WHT
MED
-HI
To thermos ta t
connections
24 V AC O NLY
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