Desa BC40 - Manuel (Page 8)

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TROUBLESHOOTING
WARNING: Never service heater while it is plugged in, operating,
or hot. Severe burns and electrical shock can occur.
REMEDY
1. Check circuit breaker in elec-
trical panel
2. Turn thermostat knob to a
higher setting
3. Check all electrical connec-
tions. See Wiring Diagrams,
page 15
4. If fan does not turn freely, see
Pump Rotor, page 14
5. Replace ignition control as-
sembly
6. Replace motor
1. Fill tank with kerosene
2. See Pump Pressure Adjust-
ment, page 10
3. See Fuel Filter, page 11
4. See Nozzle Assembly, page 12
5. Drain and flush fuel tank with
clean kerosene. See Storing,
Transporting, or Shipping,
page 7
6. Check electrical connections.
See Wiring Diagrams , page 15
7. Replace ignitor, see page 11
8. Replace ignition control as-
sembly
1. See Pump Pressure Adjust-
ment, page 10
2. See Air Output, Air Intake, and
Lint Filters, page 10
3. See Fuel Filter, page 11
4. See Nozzle Assembly, page 12
5. Make sure photocell boot is
properly seated in bracket
6. Clean photocell lens
7. Check electrical connections.
See Wiring Diagrams, page 15
8. Replace photocell
9. Replace ignition control as-
sembly
POSSIBLE CAUSE
1. No power to heater
2. Thermostat setting is too low
3. Bad electrical connection be-
tween motor and ignition con-
trol assembly or ignition control
assembly and power cord
4. Binding pump rotor
5. Defective ignition control as-
sembly
6. Defective motor
1. No fuel in tank
2. Pump pressure incorrect
3. Dirty fuel filter
4. Obstruction in nozzle
5. Water in fuel tank
6. Bad electrical connection
between ignitor and ignition
control assembly
7. Defective ignitor
8. Defective ignition control as-
sembly
1. Pump pressure incorrect
2. Dirty air intake, air output,
and/or lint filter
3. Dirty fuel filter
4. Obstruction in nozzle
5. Photocell assembly not properly
installed (not seeing the flame)
6. Dirty photocell lens
7. Bad electrical connection be-
tween photocell and ignition
control assembly
8. Defective photocell
9. Defective ignition control as-
sembly
FAULT CONDITION
Motor does not start five seconds
after heater is plugged in
Motor starts and runs but heater
does not ignite
Heater ignites but ignition control
assembly shuts heater off after a
short period of time
WARNING: High voltage!
WARNING: High voltage!
WARNING: High voltage!