Desa 8 (30, 44 kW (150, 5 (70, 4 (90, 20, 26, 000 Btu/Hr) TROUBLE- Shooting, How Often How To

Continued

TROUBLE- SHOOTING

Item	How Often	How To
Spark plug	Clean and regap every 600	See Spark Plug, pages 12 and 13.
	hours operation or replace
	as needed.
Fan blades	Clean every season or as needed. See Fan, page 19.
Motor	Not required/permanently lubricated

WARNING

WARNING ICONG 001

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

REMEDY

See Pump Pressure

Adjustment, page 14.

See Air Output, Air Intake and Lint Filters, page 14.

See Fuel Filter, pages 10 and 11.

Dirt in nozzle	See Nozzle, pages 15 thru 17.
Dirty photocell lens	Clean photocell lens.
Bad flame-out control	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 14.
Carbon deposits on spark	See Spark Plug, pages 12
plug and/or improper gap	and 13.
Dirty fuel filter	See Fuel Filter, pages 10
	and 11.
Dirt in nozzle	See Nozzle, pages 15 thru
	17.
Water in fuel tank	Drain and flush fuel tank
	with clean kerosene. See
	Storing, Transporting, or
	Shipping, page 8.
WARNING ICONG 001 WARNING: High voltage!
Electronic ignitor not	Make sure electronic
grounded (earthed)	ignitor mounting is tight.
Bad electronic ignitor	Replace electronic ignitor.

Motor does not start	Flame-out control not reset	Reset flame-out control
when heater is		button, see Figures 6 thru
plugged in, fan		8, pages 7 and 8.
rotates slowly or	Binding pump rotor	If fan is hard to turn, see
does not turn.
		Pump Rotor, page 18.
			9

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