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CLEANFIRE OUTDOOR FURNACE • OWNER'S MANUAL
NOTE: If the outdoor furnace is operated with the door open, the firebox door seal may be damaged.
2 . Actuator motor and/or air regulating disc stuck open or obstructed - Remove
any obstructions. Lubricate the chain with a high temperature dry film lubricant
rated for chains . Be careful not to get lubricant on the actuator motor or motor
shaft . If replacement is necessary, refer to Air Regulating Disc Gaps for the
factory settings for the air regulating discs .
NOTE: If the outdoor furnace loses water from boiling, the problem should be identified and
repaired immediately. Under normal operation, little or no water needs to be added. Adding water
to the furnace may cause corrosion if not immediately treated with MolyArmor 350. In addition,
the amount of dissolved solids in the system (due to adding additional water) can cause problems.
3 . Water is not circulating - Check to make sure the pump is operating and water
is circulating continuously through the supply and return lines to keep water
temperature uniform in the outdoor furnace .
4 . Circulation valve(s) closed - Be sure the proper valves in the system are open to
allow circulation .
5 . Pulse set to run too long and/or too often in a low heat draw situation -
Increase the time between idle pulses of air and/or decrease the amount of time
the pulse is provided (see FireStar operating instructions).
6 . FireStar combustion controller set incorrectly - Refer to FireStar Combustion
Controller Operation Manual .
F. FREQUENT PUMP TROUBLE OR POOR WATER CIRCULATION
1 . Pump mounted incorrectly - If the pump is not mounted on the outdoor furnace,
it must be mounted at a minimum of four feet lower than the top water level in
the outdoor furnace .
4 ft. (1.2 m) min.
Pump must be installed
in the hot supply line,
before the heat exchanger,
and may be located inside
this building or on the
outdoor furnace.
Water Level
Building to be heated
Ground
Level
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