Mi-T-M Corporation HHS Serie Manuel De L'utilisateur page 22

SYMPTOM
Burner motor will not run.
Burner runs erratically.
Burner runs, but will not heat.
service
Burner discharges white smoke.
Burner discharges black smoke.
22
TROUBLESHOOTING
PROBABLE CAUSE
Switch is defective or not in "Burner"
position.
No voltage.
Motor overload.
Fuel pump seized.
Water in the fuel oil.
Dirty fuel filter/water separator.
Fuel pickup screen is obstructed.
Dirty fuel nozzle.
Improper air adjustment setting.
Fuel pump malfunctioning.
Low fuel pump pressure.
Dirty fuel nozzle.
Improper air adjustment setting.
Low on fuel.
Low fuel pressure.
Fuel pickup screen is obstructed.
Dirty fuel nozzle.
Improper air adjustment setting.
Cold combustion chamber start-up.
Excessive air supply.
Insufficient air supply.
Fuel nozzle orifice is too large.
Fuel pressure is too high.
Combustion chamber loaded with
unburned fuel.
*See separate Parts List for detailed views or explanations.
REMEDY
Check switch position or replace.
Contact Customer Service.
Reset when cool.
Allow motor to cool. Repair or
replace.*
Drain fuel filter/water separator.
Drain fuel tank, and replace with
clean fuel.
Replace element.
Contact Customer Service.
Replace.*
Adjust
Replace.*
Check fuel pump pressure, adjust or
replace if needed. (Pressure should
be checked by an authorized
technician.)
Replace.*
Adjust as explained on page 18.
Refuel. If white smoke persists,
contact Customer Service.
Check fuel pump pressure, adjust or
replace if needed. (Pressure should
be checked by an authorized
service technician.)
Contact Customer Service.
Replace.*
Adjust.
Run burner for several minutes.
Adjust.
Adjust.
Replace with correct nozzle.
Contact Customer Service.
Contact Customer Service.
Operator's Manual