Desa Tech CGN20T - Manual (Page 22)

22
103873
CLEANING
AND
MAINTENANCE
ODS/PILOT AND BURNER
• 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.
TROUBLE-
SHOOTING
Note: All troubleshoot-
ing items are listed in
order of operation.
WARNING ICON G 001
WARNING
Turn off heater and let cool before cleaning.
WARNING ICON G 001
CAUTION
You must keep control areas, burner, and circulating air passage-
ways 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 carpet-
ing, bedding material, etc.
WARNING ICON G 001
WARNING
Turn off and unplug heater and let cool before servicing. Only a
qualified service person should service and repair heater.
WARNING ICON G 001
CAUTION
Never use a wire, needle, or similar object to clean ODS/pilot. This
can damage ODS/pilot unit.
POSSIBLE
CAUSE
1. Ignitor electrode posi-
tioned wrong
2. Ignitor electrode broken
3. Ignitor electrode not con-
nected to ignitor cable
4. Ignitor cable pinched or
wet
5. Piezo ignitor nut is loose
6. Broken ignitor cable
7. Bad piezo ignitor
REMEDY
1. Replace ignitor
2. Replace ignitor
3. Reconnect ignitor cable
4. Free ignitor cable if
pinched by any metal or
tubing. Keep ignitor cable
dry
5. Tighten nut holding piezo
ignitor to heater cabinet.
Nut is located inside heater
cabinet at top
6. Replace ignitor cable
7. Replace piezo ignitor
OBSERVED
PROBLEM
When ignitor button
is pressed, there is no
spark at ODS/pilot