Cleaning And Maintenance; Troubleshooting - Desa Comfort Glow CGN12 Owner's Operation And Installation Manual

Desa vent-free natural gas heater owner's operation and installation manual cgn12
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CLEANING
AND
MAINTENANCE
TROUBLE-
SHOOTING
Note:
All troubleshooting
items are listed in order of
operation.
Turn off heater and let cool before cleaning.
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.
Turn off heater and let cool before servicing. Only a qualified
service person should service and repair heater.
Never use a wire, needle, or similar object to clean ODS/pilot. This
can damage ODS/pilot unit.
OBSERVED
POSSIBLE
PROBLEM
CAUSE
When control knob is
1. Ignitor electrode posi-
pressed in and turned
to the PILOT/IGN po-
2. Ignitor electrode broken
sition, there is no
3. Ignitor electrode not con-
spark at ODS/pilot
4. Ignitor cable pinched or
5. Broken ignitor cable
6. Bad piezo ignitor
!
WARNING
WARNING ICON
G 001
!
CAUTION
WARNING ICON
G 001
!
WARNING
WARNING ICON
G 001
!
CAUTION
WARNING ICON
G 001
tioned wrong
nected to ignitor cable
wet
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 (pi-
ezo is part of control
valve)
17

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