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.

9

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Page 9
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Desa 35, 110, 000 BTU/Hr ARL, 000 50, 000 55, 000 70, 150, 100 owner manual TROUBLE- Shooting, Possible Cause

100, 150, 000 70, 000, 000 55 specifications

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