Ehrle HDB Serie Manual Del Usuario página 27

SYMPTOM
Detergent will not siphon.
(when applicable)
Water flows back into detergent
container. (when applicable)
Water flows from the nozzle when
the trigger gun is locked in the OFF
position.
Blower motor will not run. (Burner
will not ignite without blower running)
Blower runs, but burner will not
ignite.
HDB/HDD-SERIES Operator's Manual
TROUBLESHOOTING
PROBABLE CAUSE
Detergent strainer is not completely
submerged in detergent solution.
Detergent strainer obstructed.
Detergent hose cut, obstructed or
kinked.
Nozzle assembly is plugged.
Detergent adjusting knob turned to
closed position.
Ball & Spring in detergent strainer
is obstructed.
Trigger gun is malfunctioning.
Burner/Blower motor malfunction.
Burner switch is not turned on.
Thermostat knob is OFF.
Trigger gun is closed.
Out of fuel.
When applicable detergent valve
is open, but detergent hose is not
completely submerged in solution.
(This causes safety devices to shut
down burner.)
Pressure switch override.
No voltage.
Poor or improper fuel supply.
Fuel pump sucking air.
REMEDY
Check, submerge if necessary.
Inspect, clean or replace.
Inspect, clean or replace.
Clean or replace.
Open adjusting knob. Refer to
"Cleaning w/ Detergents" pg. 21.
Remove, clean or replace.
Repair or replace.
Repair or replace.
Check switch position.
Check thermostat knob position.
Open gun for pressure.
Refuel.
Close valve, or completely
submerge clear vinyl hose into
detergent solution.
Pressure should be over 375 PSI
to allow burner to come on.
Consult Service Department.
Check fuel to ensure it is correct.
Drain tank and filter if necessary
and refill with proper fuel.
Tighten all fuel intake connections.
Eliminate leaks in intake line.
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