Desa REM50B, B50G Trouble- Shooting, Observed Fault, Possible Cause, Remedy, WARNING High voltage

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 or bad photocell lens

Bad flame-out control

REMEDY

See Pump Pressure

Adjustment, page 10.

See Air Output, Air Intake and Lint Filters, page 9.

See Fuel Filter, page 10. See Nozzle, page 11.

Clean or replace photocell lens.

Replace flame-out control.

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

Wrong pump pressure

Carbon deposits on spark plug and/or improper gap

Dirty fuel filter

Dirt in nozzle

Water in fuel tank

See Pump Pressure

Adjustment, page 10.

See Spark Plug, pages 10 and 11.

See Fuel Filter, page 10. See Nozzle, page 11.

Drain and flush fuel

!WARNING: High voltage!

Electronic ignitor not grounded

Bad electronic ignitor

tank with clean kerosene. See Storing, Transport- ing, or Shipping, page 7.

Make sure electronic ig- nitor mounting is tight.

Replace electronic ignitor.

8

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 12.

102016