Desa CGN12A - Manual (Page 21)

21
100847
CLEANING
AND
MAINTENANCE
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
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 ICON G 001
WARNING
Turn off heater and let cool before servicing. Only a qualified
service person should service and repair heater.
Note: All troubleshooting
items are listed in order of
operation.
TROUBLE-
SHOOTING
WARNING ICON G 001
CAUTION
Never use a wire, needle, or similar object to clean ODS/pilot. This
can damage ODS/pilot unit.
OBSERVED
PROBLEM
When ignitor button
is pressed and control
knob is pressed in
and turned to the
PILOT position,
there is no spark at
ODS/pilot
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 control valve
(piezo is part of control
valve)
Continued