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13
099565
OBSERVED
PROBLEM
Heater ignites, but
safety control
shuts off heater
after a short period
of time.
1. Wrong pump pressure
2. Dirty fuel filters
3. Dirt in nozzle
4. Dirty photocell lens
5. Open or damaged
photocell
6. Bad safety control
7. Damaged fan switch
1. Adjust pump pressure (see
Pump Pressure Adjustment,
page 16).
2. Clean fuel filters (see Fuel
Filters, page 17).
3. Replace nozzle (see Nozzle,
page 15).
4. Clean photocell lens with
clean, soft cloth.
5. Replace photocell.
6. Replace safety control.
7. Replace fan switch.
1. Wrong pump pressure
2. A) Heater almost out of
fuel
B) Water condensation
in fuel tank
C) Wrong fuel
3. Dirty fuel filters
4. Air leak in suction
system
5. Dirty nozzle
6. Low voltage causing
motor to operate below
rated speed
7. Loose fuel line
1. Adjust pump pressure ( see
Pump Pressure Adjustment,
page 16).
2. A) Add fuel to tank.
B) Check fuel tank for
bubbles of water in bottom. If
found, remove fuel (see
Storage, page 9). Clean tank
and fuel filters (see Fuel
Filters, page 17). Fill with
clean fuel.
C) Remove wrong fuel (see
Storage, page 9). Clean tank
and fuel filters (see Fuel
Filters, page 17). Fill with
correct fuel.
3. Clean fuel filters (see Fuel
Filters, page 17).
4. Tighten all fuel line connec-
tions (see Fuel Lines, page
16).
5. Replace nozzle (see Nozzle,
page 15).
6. Check voltage at heater.
Voltage at heater should
never be less than 198 volts.
7. Check and tighten all fuel line
connections (see Fuel Lines,
page 16).
Heater burns, but
puffs of smoke can
be seen.
Heater does not
burn steady.
Heater burns with
odor.
Heater smokes
continuously.
TROUBLE-
SHOOTING
Continued
POSSIBLE CAUSE REMEDY