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15
TROUBLESHOOTING
Note : All troubleshooting
items are listed in order of
operation.
WARNING: Only a qualied
service person should service and
repair heater.
CAUTION: Never use a
wire, needle, or similar object to
clean ODS/pilot. This can damage
ODS/pilot unit.
OBSERVED PROBLEM POSSIBLE CAUSE REMEDY
When ignitor button is pressed
and control knob is pressed in and
turned to the PILOT position, there
is no spark at ODS/pilot.
1. Ignitor electrode is positioned
wrong.
2. Ignitor electrode is broken.
3. Ignitor electrode is not connected
to ignitor cable.
4. Ignitor cable is pinched or wet.
5. Broken ignitor cable.
6. Bad piezo ignitor.
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 piezo ignitor.
When ignitor button is pressed
and control knob is press in and
turned to the PILOT position, there
is a spark at ODS/pilot but no
ignition.
1. Gas supply turned off or equipment
shutoff valve is closed.
2. Control knob not fully pressed in
while pressing ignitor button.
3. Air in gas lines when installed.
4. ODS/pilot is clogged.
5. Gas regulator setting is not correct.
6. Control knob not in PILOT position.
1. Turn on gas supply of open
equipment shutoff valve.
2. Fully press in control knob
while pressing ignitor button.
3. Continue holding down control
knob. Repeat igniting operation
until air is removed.
4. Clean ODS/pilot (see Cleaning and
Maintenance, Page 14) or re-
place ODS/pilot assembly.
5. Replace gas regulator.
6. Turn controlknob to PILOT position.
ODS/pilot lights but ame goes
out when control knob is
released.
1. Control knob is not fully pressed in.
2. Control knob is not pressed in
long enough.
3. Equipment shutoff valve is not
fully open.
4. Thermocouple connection is
loose at control valve.
5 Pilot ame is not touching
thermocouple, This allows
thermocouple to cool, causing
pilot ame to go out. This
problem could be caused by
one or both of the following:
A) Low gas pressure
B) Dirty or partially clogged
ODS/ pilot
6. Thermocouple damaged.
7. Control valve damaged.
1. Press in control knob fully.
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds.
3. Fully open equipment shutoff valve.
4. Hand tighten until snug, then
tighten 1/4 turn more.
5. A) Contact local natural gas
company.
B) Clean ODS/pilot (see Cleaning
and Maintenance, Page 13) or
replace ODS/pilot assembly.
6. Replace thermocouple.
7. Contact Dealer or PRO-COM.
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