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11
100577
OBSERVED FAULT POSSIBLE CAUSE REMEDY
Incorrect pump pressure
Dirty air output, air intake
and lint filters
Dirty fuel filter
Dirt in nozzle
Dirty photocell lens
Defective flame-out control
Heater ignites, but
flame-out control
shuts off heater after
a short period of
time.
WARNING: Disconnect heater cord!
!
Motor hums when
heater is plugged in,
fan rotates slowly or
does not turn.
Solid state relay not
allowed to reset
Binding pump rotor
Heater will not
ignite, but motor runs
for a short period of
time.
Incorrect pump pressure
Carbon deposits on spark
plug and/or improper gap
Dirty fuel filter
Dirt in nozzle
Water in fuel tank
Electronic ignitor not
grounded ectronic ignitor
See Pump Pressure
Adjustment, page 13.
See Air Output, Air Intake
and Lint Filters, page 12.
See Fuel Filter, page 13.
See Nozzle, page 15.
Clean photocell lens.
Replace flame-out control.
Wait two (2) minutes
before trying to restart
heater.
If fan is hard to turn, see
Pump Rotor, page 16.
Motor does not start;
thermostat (if used)
is set to call for heat.
Wait for motor to cool
down. It will reset
automatically.
Motor thermal trip out
TROUBLE-
SHOOTING
To avoid risk of burn and electrical shock, never attempt to
service heater while it is plugged in, operating, or hot.
!
WARNING
See Pump Pressure
Adjustment, page 13.
See Spark Plug, page 14.
See Fuel Filter, page 13.
See Nozzle, page 15.
Drain and flush fuel tank
with clean kerosene. See
Storing, Transporting,
or Shipping, page 10.
Make sure electronic
ignitor mounting is tight.
Replace electronic ignitor.
WARNING: High voltage!
!