Desa 35, 110, 000 50 Trouble- Shooting, Observed Fault, Possible Cause, Remedy, See Pump Pressure

TROUBLE- SHOOTING

!WARNING

Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur.

OBSERVED FAULT

Heater ignites, but flame-out control shuts off heater after a short period of time.

POSSIBLE CAUSE

Wrong pump pressure

Dirty air output, air intake and lint filters

Dirty fuel filter

Dirt in nozzle

Dirty photocell lens

Bad flame-out control

REMEDY

See Pump Pressure Adjustment, page 11.

See Air Output, Air Intake

and Lint Filters, page 10.

See Fuel Filter, page 11.

See Nozzle, page 12.

Clean photocell lens.

Replace flame-out control.

Heater will not ignite, but motor runs for a short period of time.

!

Wrong pump pressure	See Pump Pressure
	Adjustment, page 11.
Carbon deposits on spark	See Spark Plug, pages 11
plug and/or improper gap	and 12.
Dirty fuel filter	See Fuel Filter, page 11.
Dirt in nozzle	See Nozzle, page 12.
Water in fuel tank	Drain and flush fuel
	tank with clean kerosene.
	See Storage, page 8.
WARNING: High voltage!
Electronic ignitor not	Make sure electronic ig-
grounded	nitor mounting is tight.
Bad electronic ignitor	Replace electronic ignitor.

Motor does not start when heater is plugged in, fan rotates slowly or does not turn.

Flame-out control not reset	Press flame-out control
	reset button.
Solid state relay not	Wait two minutes
allowed to reset	before trying to restart
	heater.
Binding pump rotor	If fan is hard to turn, see
	Pump Rotor, page 13.

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