Hotsy 1265SSD - Page 23

23
Maintenance
PROBLEM POSSIBLE CAUSE SOLUTION
BURNER WILL
NOT LIGHT
(continued from
previous page)
Flex coupling slipping on fuel pump
shaft or burner motor shaft
Replace if needed.
On-Off switch defective
Check for electrical current reaching burner
assembly with burner switch on.
Heavy sooting on coil and burner can
cause interruption of air flow
and shorting of electrodes
Clean as required.
Improper electrode setting
Check and reset according to diagram in
Operator's Manual.
Fuel not reaching combustion
chamber
Check fuel pump for proper flow. Check solenoid flow
switch on machines with spray gun control for proper
on-off fuel flow control.
Clogged burner nozzle Replace.
Thermostat faulty or slow engine
speed
Increase engine RPM to increase voltage.
Pressure switch malfunction
Remove, test for continuity and replace
as needed.
Flow solenoid malfunction Replace if needed.
FLUCTUATING
PRESSURE
Valves worn Check and replace if necessary.
Blockage in valve Check and replace if necessary.
Pump sucking air
Check water supply and air seepage at
joints in suction line.
Worn piston packing Check and replace if necessary.
MACHINE
SMOKES
Improper fuel or water in fuel Drain tank and replace contaminated fuel.
Improper air adjustment Readjust air bands on burner assembly.
Low fuel pressure Adjust fuel pump pressure to specifications.
Plugged or dirty burner nozzle Replace nozzle.
Faulty burner nozzle spray pattern Replace nozzle.
Heavy accumulation of soot on coils
and burner assembly
Remove coils and burner assembly, clean
thoroughly.
Misaligned electrode setting Realign electrodes to specifications.
Obstruction in smoke stack Check for insulation blockage or other foreign
objects.
Manual Operator HOTSY 1265SSD/S 9.808-057.0 - A