Procom SN400TYLA - Troubleshooting

15
TROUBLESHOOTING
NOTE: All troubleshooting
items are listed in order of
operation.
WARNING: Only a qualified
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.
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).
7. Tighten nut holding piezo ignitor
to base panel of log set. Nut is
located behind base panel.
1. Turn on gas supply or 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
5. Maintenance, page 13) or replace
ODS/pilot assembly.
6. Replace gas regulator. Turn
control knob to pilot position.
7. Replace gas regulator.
1. Press in control knob all the way.
2. After ODS/pilot lights, keep
control knob pressed in for 30
seconds.
3. Wait one minute for safety
interlock system to reset.
Repeat ignition operation.
4. Fully open equipment shutoff
valve.
5. Hand tighten until snug, then
tighten 1/4 turn more.
6.
A) Contact local natural propane/LP
gas company.
B) Clean ODS/pilot (see Cleaning
and Maintenance,page 13) or
replace ODS/pilot assembly.
7. Replace thermocouple.
8. Replace control valve.
POSSIBLE CAUSE
1. Ignitor electrode positioned
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.
7. Piezo ignitor nut is loose.
1. Gas supply turned off or
equipment shutoff valve closed.
2. Control knob not fully pressed in
while in pilot position.
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.
7. Depleted gas supply.
1. Control knob not fully pressed in.
2. Control knob not pressed in long
enough.
3. Safety interlock system has been
triggered.
4. Equipment shutoff valve not
fully open.
5. Thermocouple connection loose
at control valve.
6. Pilot flame not touching
thermocouple allowing thermo-
couple to cool. This causes
pilot flame 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.
7. Thermocouple damaged.
8. Control valve damaged.
OBSERVED PROBLEM
When ignitor button is pressed in,
there is no spark at ODS/pilot.
ODS/pilot lights, but flame goes out
when control knob is released.
When ignitor button is pressed in,
there is a spark at ODS/pilot but
no ignition.