Desa and 55 Troubleshooting, Fault Condition, Possible Cause, Remedy, Wiring Diagrams, page

Models: and 55

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TROUBLESHOOTING

OWNER’S MANUAL

TROUBLESHOOTING

FAULT CONDITION WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur.

FAULT CONDITION

POSSIBLE CAUSE

REMEDY

Motor does not start five seconds after heater

1.

No power to heater

1.

Check circuit breaker in electrical panel.

is plugged in.

 

 

 

 

 

 

 

WARNING: High voltage!

 

 

 

 

 

 

 

 

 

 

 

 

2.

Bad electrical connection between mo-

2.

Check all electrical connections. See

 

 

tor and ignition control assembly or ig-

 

Wiring Diagrams, page 10.

 

 

nition assembly and power cord

 

 

 

3.

Binding pump rotor

3.

If fan does not turn freely, see Pump Ro-

 

 

 

 

 

tor, page 8.

 

4.

Defective ignition control assembly

4.

Replace ignition control assembly.

 

5.

Defective motor

5.

Replace motor.

 

 

 

 

 

Motor starts and runs but heater does not

1.

No fuel in tank

1.

Fill tank with kerosene.

ignite.

2.

Pump pressure incorrect

2.

See Pump Pressure Adjustment, page 6.

 

3.

Dirty fuel filter

3.

See Fuel Filter, page 7.

 

4.

Obstruction in nozzle

4.

See Nozzle, page 8.

 

5.

Water in fuel tank

5.

Drain and flush fuel tank with clean

 

 

 

 

 

kerosene. See Storing, Transporting, or

 

 

 

 

 

Shipping, page 4.

POSSIBLE CAUSE WARNING: High voltage!

6.Bad electrical connection between igni- tor and ignition control assembly

7.Defective ignitor

8.Defective ignition control assembly

6.Check electrical connections. See Wir- ing Diagrams, page 10.

7.Replace ignitor, see page 7.

8.Replace ignition control assembly.

Heater ignites but ignition control assembly

1.

Pump pressure incorrect

1.

See Pump Pressure Adjustment, page 6.

shuts heater off after a short period of time.

2.

Dirty air intake, air output, and/or lint

2.

See Air Output, Air Intake, and Lint Fil-

 

 

filter

 

ters, page 6.

 

3.

Dirty fuel filter

3.

See Fuel Filter, page 7.

 

4.

Obstruction in nozzle

4.

See Nozzle, page 8.

 

5.

Photocell assembly not properly in-

5.

Make sure photocell boot is properly

 

 

stalled (not seeing the flame)

 

seated in bracket.

 

6.

Dirty photocell lens

6.

Clean photocell lens.

 

 

 

 

 

 

 

 

WARNING: High voltage!

 

 

 

 

 

 

 

 

7.

Bad electrical connection between pho-

7.

Check electrical connections. See Wir-

 

 

tocell and ignition control assembly

 

ing Diagrams, page 10.

 

8.

Defective photocell

8.

Replace photocell.

 

9.

Defective ignition control assembly

9.

Replace ignition control assembly.

102388

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Desa and 55 owner manual Troubleshooting, Fault Condition, Possible Cause, Remedy, Wiring Diagrams, page, Shipping, page