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36
CLEANFIRE OUTDOOR FURNACE • OWNER'S MANUAL
Section 10 - Combustion Air Fan
1. Disconnect power to the outdoor furnace.
Do not proceed without testing that power is disconnected.
2. Remove the airbox access cover; then open the hinged airbox door.
Inspect the combustion air fan inlet screen and fan wheel and clean if
necessary. Make sure the air intake is clean and not obstructed.
Fan
Air Inlet Screen
NOTE: Only if the decal on the fan housing indicates to oil the bearings at the end of
each heating season, oil the combustion fan bearings using the following procedure.
4. If the decal on the fan housing indicates to oil the bearings, remove the
bolts securing the combustion fan and remove the combustion fan.
Hold the fan so the oil locations are upright; then apply 10 drops of SAE
20 non-detergent oil (e.g., 3-IN-ONE
®
Oil) in each location, as shown.
Install the combustion fan and secure with bolts.
NOTE: Hold fan so the oil
locations are upright to ensure
the oil will drain down into the
bearings.
ONLY if the decal on the fan housing
indicates to oil the bearings, oil
these locations.
5. Close and secure the airbox door. Install the airbox access cover.
Do not connect power or operate the outdoor furnace with the airbox access cover
removed. The outer airbox cover must be installed and secured with screws.