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FLAME-MAX
UNVENTED GAS LOG HEATER
TROUBLESHOOTING
Note: For additional help, visit DESA
International's technical service web site
at www.desatech.com.
Note: All troubleshooting items are listed in
order of operation.
OBSERVED PROBLEM
When ignitor button is pressed, there is no
spark at ODS/pilot
When ignitor button is pressed, there is
spark at ODS/pilot but no ignition
ODS/pilot lights but flame goes out when
control knob is released
For more information, visit www.desatech.com
®
WARNING: Turn off heater
and let cool before servicing.
Only a qualified service person
should service and repair heater.
POSSIBLE CAUSE
1. Ignitor electrode not connected to igni-
tor cable
2. Ignitor cable pinched or wet
3. Piezo ignitor nut is loose
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned wrong
1. Gas supply turned off or equipment
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. Depleted gas supply (propane/LP gas)
6. ODS/pilot is clogged
7. Gas regulator setting is not correct
1. Control knob not fully pressed in
2. Control knob not pressed in long enough
3. Equipment shutoff valve not fully open
4. Pilot flame not touching thermocouple,
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
5. Thermocouple connection loose at con-
trol valve
6. Thermocouple damaged
7. Control valve damaged
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REMEDY
1. Reconnect ignitor cable
2. Free ignitor cable if pinched by any
3. Tighten nut holding piezo ignitor to base
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace piezo ignitor
7. Replace piezo ignitor
1. Turn on gas supply or open equipment
2. Turn control knob to PILOT position
3. Press in control knob while in PILOT
4. Continue holding down control knob.
5. Contact local propane/LP gas company
6. Clean ODS/pilot (see Cleaning and
7. Replace gas control
1. Press in control knob fully
2. After ODS/pilot lights, keep control
3. Fully open equipment shutoff valve
4. A) Contact local natural or propane/LP
5. Hand tighten until snug, then tighten
6. Replace thermocouple
7. Replace control valve
18
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot. This can damage ODS/
pilot unit.
metal or tubing. Keep ignitor cable dry
panel of log set. Nut is located behind
base panel.
shutoff valve
position
Repeat igniting operation until air is re-
moved
Maintenance, page 17) or replace ODS/
pilot assembly
knob pressed in 30 seconds
gas company
B) Clean ODS/pilot (see Cleaning and
Maintenance, page 17) or replace ODS/
pilot assembly
1/4 turn more
108382
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