Product Manual

18 19
Water flows
from the nozzle
when the
trigger gun is
locked in the
“OFF” position
Trigger gun is malfunctioning. Repair or replace.
Blower motor
will not run.
(Burner will not
ignite without
blower running)
Burner/Blower motor
malfunction.
Repair or replace.
Belt broken or slipping on
generator.
Adjust or replace as necessary.
Blower runs,
but burner will
not ignite.
Switch is not in “Burner” position. Check switch position.
Thermostat knob is OFF. Check thermostat knob position.
Out of fuel. Refuel.
Gun trigger is closed/not pressed. Press down on gun trigger.
Detergent valve is open, but
detergent hose is not completely
submerged in solution. (This
causes safety devices to shut
down burner.)
Close valve, or completely submerge clear vinyl
hose into detergent solution.
Pressure switch override. Pressure should be over 375 PSI
No voltage. Consult Service Department.
Fuel pump sucking air. Tighten all fuel intake connections. Eliminate leaks
in intake line.
Poor or improper fuel supply. Check fuel to ensure it is correct. Drain tank and
filter if necessary and refill with proper fuel.
Blower runs,
but burner will
not ignite.
Dirty or clogged fuel filter or fuel
water separator.
Drain or replace as necessary.
Low fuel pump pressure. Check fuel pump pressure, adjust or replace as
necessary.
Fuel pump inoperative. Check pressure, replace if necessary.
Flexible coupler broken. Replace.
Fuel solenoid valve failure. Replace.
Dirty or clogged fuel nozzle. Replace fuel nozzle.
Improper burner air adjustment. Adjust.
Faulty ignition module. Repair or replace. Consult Customer Service.
Ignition electrodes damaged or
worn.
Adjust or replace electrodes.
Consult Customer Service.
Burner runs
erratically.
Water in the fuel. Drain fuel filter/water separator. Drain fuel tank,
and replace with clean fuel.
Dirty fuel filter/water separator. Replace element.
Dirty fuel nozzle. Replace.
Improper air adjustment setting. Adjust.
Fuel pump malfunctioning. Replace.
Blower runs,
burner ignites
but will not
heat.
Improper burner air adjustment
setting.
Adjust the setting.
Scale build up in heat exchanger
coil.
Consult Customer Service.
Burner
discharges
white smoke.
Low on fuel. Refuel. If white smoke persists, consult Customer
Service.
Excessive air supply. Adjust air flow.
Burner
discharges
black smoke.
Insucient air supply. Adjust to ensure air flow is sucient.
TROUBLESHOOTING TROUBLESHOOTING
Blower runs,
burner ignites
but will not
heat.
Thermostat knob is OFF. Check thermostat knob position.
Detergent valve is open, but
detergent hose is not completely
submerged in solution. (This
causes safety devices to shut
down burner.)
Close valve, or completely submerge vinyl hose
into detergent solution.
Poor or improper fuel supply. Check fuel to ensure it is correct. Drain tank and
replace filter if necessary and refill with proper fuel.
Dirty or clogged fuel filter or fuel
water separator.
Drain or replace as necessary.
Low fuel pump pressure. Check fuel pump pressure, adjust or replace if
needed.
Dirty or clogged fuel nozzle. Replace fuel nozzle.