Desa CGN18R - Manual (Page 22)

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CLEANING
AND
MAINTENANCE
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.
TROUBLE-
SHOOTING
Note: All troubleshooting
items are listed in order of
operation.
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
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.
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 control knob is
pressed in and turned
to the PILOT/IGN
position, there is no
spark at ODS/pilot
POSSIBLE
CAUSE
1. Ignitor electrode posi-
tioned wrong
2. Ignitor electrode broken
3. Ignitor electrode not
connected to ignitor
cable
4. Ignitor cable pinched or
wet
5. Broken ignitor cable
6. 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. Replace ignitor cable
6. Replace control valve
(piezo is part of control
valve)