CLEANING AND MAINTENANCE

TROUBLE-

SHOOTING

Note: All troubleshooting items are listed in order of operation.

!WARNING

Turn off heater and let cool before cleaning.

!CAUTION

You must keep control areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, etc.

ODS/PILOT AND BURNER ORIFICE

• Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean.

CABINET

Air Passageways

Use a vacuum cleaner or pressurized air to clean.

Exterior

Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust.

!WARNING

Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater.

!CAUTION

Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit.

OBSERVED

POSSIBLE

 

 

PROBLEM

CAUSE

REMEDY

 

 

 

 

 

When control knob is

1.

Ignitor electrode posi-

1.

Replace ignitor

pressed in and turned

 

tioned wrong

 

 

to the PILOT/IGN po-

2.

Ignitor electrode broken

2.

Replace ignitor

sition, there is no

3.

Ignitor electrode not con-

3.

Reconnect ignitor cable

spark at ODS/pilot

 

nected to ignitor cable

 

 

 

4.

Ignitor cable pinched or

4.

Free ignitor cable if

 

 

wet

 

pinched by any metal or

 

 

 

 

tubing. Keep ignitor cable

 

 

 

 

dry

 

5.

Broken ignitor cable

5.

Replace ignitor cable

 

6.

Bad piezo ignitor

6.

Replace control valve (pi-

 

 

 

 

ezo is part of control

 

 

 

 

valve)

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Desa CGN12 Cleaning and Maintenance Trouble Shooting, ODS/PILOT and Burner Orifice, Cabinet, Air Passageways, Exterior