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Burner Motor Brush Inspection
Due to the high current draw of the burner motor, it is advised to inspect the brushes for exces-
sive wear every 100 hours of operation. If the brushes are worn out completely it will stop the
motor and typically damage or destroy the ignition transformer assembly.
The brushes can be inspected and installed in a matter of minutes as follows:
1) Remove the brush caps (A) with a standard straight slot screw driver.
2) Remove the brushes (B) and inspect. If there is less than 1/8" of brush remaining,
replace it immediately. If not, reinstall existing brush.
3) Be sure the radius (C) of the brush follows the curvature of the motor as shown below.
4) When the brushes are worn close to 1/8", check frequently to avoid failure.
C
B
A
1/8"
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