Troubleshooting - Desa RC40 Owner's Manual

TROUBLESHOOTING

WARNING: Never service heater while it is plugged
in, operating, or hot. Severe burns and electrical
shock can occur.
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
105536
POSSIBLE CAUSE
1. No power to heater
2. Thermostat setting is too low
3. Bad electrical connection between mo-
tor and ignition control assembly or ig-
nition control assembly and power cord
4. Binding pump rotor
5. Defective ignition control assembly
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 igni-
tor and ignition control assembly
7. Defective ignitor
8. Defective ignition control assembly
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 in-
stalled (not seeing the flame)
6. Dirty photocell lens
7. Bad electrical connection between pho-
tocell and ignition control assembly
8. Defective photocell
9. Defective ignition control assembly
For more information, visit www.desatech.com
For more information, visit www.desatech.com
REMEDY
1. Check circuit breaker in electrical panel
2. Turn thermostat knob to a higher setting
WARNING: High voltage!
3. Check all electrical connections. See
Wiring Diagrams, page 13
4. If fan does not turn freely, see Pump Ro-
tor, page 12
5. Replace ignition control assembly
6. Replace motor
1. Fill tank with kerosene
2. See Pump Pressure Adjustment, page 9
3. See Fuel Filter, page 9
4. See Nozzle Assembly, page 11
5. Drain and flush fuel tank with clean
kerosene. See Storing, Transporting, or
Shipping, page 6
WARNING: High voltage!
6. Check electrical connections. See Wir-
ing Diagrams, page 13
7. Replace ignitor, see page 10
8. Replace ignition control assembly
1. See Pump Pressure Adjustment, page 9
2. See Air Output, Air Intake, and Lint Fil-
ters, page 8
3. See Fuel Filter, page 9
4. See Nozzle Assembly, page 11
5. Make sure photocell boot is properly
seated in bracket
6. Clean photocell lens
WARNING: High voltage!
7. Check electrical connections. See Wir-
ing Diagrams, page 13
8. Replace photocell
9. Replace ignition control assembly
TROUBLESHOOTING
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