Troubleshooting - Desa Comfort Glow CGP10TLA Owner's Operation And Installation Manual

C,OLO,, an, C aP10,-,
VENT-FREE PROPANE/LP GAS HEATER
TROUBLESHOOTING
Note: All troubleshooting items are listed
in order of operation.
A
AIkWARNING: Turn off heater
and let cool before servicing.
Only a qualified service per-
son should service end repalr
heater.
CAUTION: Never use a wlre, I
needle, or similar object to clean
I
ODS/pllot. This can damage ODS/
pilot unit.
OBSERVED PROBLEM
POSSIBLE CAUSE REMEDY
When ignitor button is pressed, there is no
spark at ODS/pilot
1. Ignitor cable pinched or wet
2. Ignitor electrode not connected to igni-
tor cable
3. Piezo ignitor nut is loose
4. Broken ignitor cable
5. Ignitor electrode broken
6. Bad piezo ignitor
7. Ignitor electrode positioned wrong
1. Free ignitor cable if pinched by any
metal or tubing. Keep ignitor cable dry
2. Reconnect ignitor cable
3. Tighten nut holding piezo ignitor to
heater cabinet. Nut is located inside
heater cabinet at top
4. Replace ignitor cable
5. Replace ignitor
6. Replace piezo ignitor
7. Replace ignitor
When ignitor button is pressed, there is
spark at ODS/pilut but no ignition
1. Gas supply turned off or mannal shutoff
valve closed
2. Control knob not in PILOT position
3. Control knob not pressed in while in
PILOT position
4. Air in gas lines when installed
5. ODS/pilot is clogged
6. Gas regulator setting is not correct
1. Turn on gas supply or open manual
shutoff valve
2. Turn control knob to PILOT position
3. Press in control knob while in PILOT
position
4. Continue holding down conta'ol knob.
Repeat igniting operation until air is re-
moved
5. Clean ODS/pilot (see Cleaning and
Maintenance, page 13) or replace ODS/
pilot assembly
6. Replace gas regulator
ODS/pilot lights but flame goes out when
control knob is released
1. Control knob not fully pressed in
2. Control knob not pressed in long enough
3. Safety interlock system has been triggnred
4. Manual shutoff valve not fully open
5. Tbermocouple connection loose at con-
trol valve
6. Pilot flame not touching thermocunple,
which allows thermocouple to cool,
causing pilot flame to go out. This prob-
lem could be caused by one or both of
the following:
A)
Low gas pressure
B) Dirty or partially clogged
ODS/pilot
7. Thermocouple damaged
8. Control valve damaged
1. Press in control knob fully
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
3. Walt one minnte for safety interlock sys-
tem to reset. Repeat ignition operation.
4. Fully open manual shut-off valve
5. Hand tighten until snug, then tighten 114
turn more
6. A) Coutaetlocal propane/LPgas company
B) Clean ODS/pilot (see Cleaning and
Maintenance, page 13) or replace ODS/
pilot assembly
7. Replace thermocouple
8. Replace control valve
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