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CAUTION! Do not tamper with the unit. Have
a service person make any necessary
adjustments or repairs.
NOTE: Use only original equipment parts.
SUGGESTED MAINTENANCE SCHEDULE
FUEL/FUEL TANK
Flush tank every 200 hours of operation or as needed.
Do not flush with water; use only fresh K-1 kerosene.
NOTE: Use of diesel fuel may require additional
maintenance.
FAN BLADES
Blades should be cleaned at least once per heating
season, depending on conditions. Remove all
accumulated dust and dirt with a damp cloth, making
sure not to bend any of the fan blades. Ensure the
blades are dry before restarting the heater.
FUEL FILTER
The fuel filter should be cleaned at least twice per
heating season. Clean the filter by rinsing it in clean K-1
Kerosene. Contaminated fuel could make cleaning the
fuel filter necessary immediately.
NOTE: To remove the filter from KFA, turn filter
90º counterclockwise. (See Figure 3)
Figure 3
Side Cover
PAGE 7 OF 31
MAINTENANCE
Fuel Line
Fuel Filter
THERMISTOR PLACEMENT
Ensure the thermistor wire is in the proper place. The wire
should be lying on the bottom shell inside the heater
with the plastic end placed under the motor
support/motor and away from fan blade.
SPARK PLUG
Clean and re-gap every 600 hours of operation or
replace as needed. After removing the spark plug,
clean the terminals with a wire brush. Re-gap the
terminals to 0.14". (See Figure 4)
Figure 4
Terminals
0.14"
Gap
PHOTOCELL
The photocell should be cleaned using a cotton swab
dipped in alcohol or water. Clean at least once per
heating season or more depending on conditions.
(See Figure 5)
Figure 5
Spark Plug
Photocell
1223 IH-11009
Burner
Body
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