Symptom
Possible Cause
Corrective Action
9. No green light calling for heat
when unit is turned on
Check the reset button
Push and hold the reset button
If using thermostat
See #8 above
Defective Primary
Replace primary
10. Bad flame
Clogged Nozzle
Soak Nozzle in parts
cleaner/degreaser and blow it
out. Or replace nozzle.
Dirty/poor fuel
drain fuel and add new clean
fuel.
Clogged/dirty filter
Replace filter
11. Smoky flame
Open transformer lid
Make sure lid is closed
Diesel treatment was used
Add clean fuel to decrease
treatment ratio, or drain all fuel
and replace with new fuel and
clean diesel treatment.
Air flow is restricted
Check air band and increase the
air flow until smoke is no longer
visible.
Improper seal between fuel fliter
and filter assembly.
Check the seal on the fuel filter
to make sure there are no
obstructions between the filter
and the filter assembly that
could allow air to become mixed
in the fuel, causing an improper
fuel mixture.
Bad fuel
Drain fuel from tank and add
new clean fuel.
12. No flame
No fuel
Add fuel
fuel is not spraying
There are multiple possibilities.
Call your distributor or the
manufcturer at (855) 251-1649
for instructions.
Vaccum leak
Check hoses for leaks and
tighten or replace.
Other issues
We are here to assist you.
Call us at (855) 251-1649
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Summary of Contents for SF-150
Page 1: ...SERVICE MANUAL MODEL SF 150 Service Manual SF 150 V1 1 ...
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