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7) CLEAN THE BURNER ‐ Use a safe degreaser.
a. Protect the burner gasket from direct water pressure
IF the gasket becomes compromised, please contact the
technical service department for further assistance.
b. Thoroughly saturate the burner with the cleaning solution
from the top, down through the slots, as well as the
openings in the front of the burner until the burner is
soaking wet.
c. Let the burner sit for 5 minutes.
d. Remove the burner from the solution. Set the burner in a
sink in its normal upright position and wash the burner
with a high flow of water down into the slots, starting at the back and moving forward. Again,
ensure that no contact is made with the gaskets.
e. Use compressed air to clear excessive water from the burner after rinsing. Inspect the gasket.
(Minor surface tears are allowable. Major separations are not acceptable)
8) FAN ‐ The fan is probably coated with dust as well.
a. Place a towel at the bottom of the heat exchanger to cover the square port to the fan. This
towel will catch all the dust blown in the next step.
b. Use compressed air to blow into the fan. It will rotate and dust will fly out of the fan housing
into the towel above.
9) COMBUSTION CHAMBER ‐ Inspect the combustion chamber
with a bright flashlight.
a. Remove the exhaust venting from top of the unit for
the DV model
b. Place one towel at the bottom of the combustion
chamber, protecting the discharge of the fan (fan port),
as well as drape another towel covering the square
opening of the combustion chamber (to prevent
airborne debris)
c. Turn on the shop vacuum and vacuum all of the dirt
from the combustion chamber.
d. At the same time, with the air compressor, blow air
down through the top of the heat exchanger through
the vent collar to remove additional contaminants.
10) HEAT EXCHANGER ‐ If there is a white, crusty solid buildup
in the heat exchanger, please contact the technical service
department for further instruction.
29|
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Figure 31
Figure 32
Page
Troubleshooting Guide
Combustion Chamber
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