Procom SN250TYLA-D - Manual (Page 12)

12
REMEDY
TROUBLESHOOTING
Note: All troubleshooting items
are listed in order of operation.
WARNING: Turn off heater and
let cool before servicing. 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.
OBSERVED PROBLEM POSSIBLE CAUSE
1. Gas supply turned off or equip-
ment 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.
6. ODS/pilot is clogged.
7. Gas regulator setting is incorrect. 1. Turn on gas supply or open
equipment shutoff valve.
2. Turn control knob to PILOT position.
3. Press in control knob while in
PILOT position.
4. Continue holding down control
knob. Repeat igniting operation
until air is removed.
5. Contact local propane/LP gas
company.
6. Clean ODS/pilot (see Cleaning
and Maintenance,page 11 ) or re-
place ODS/pilot assembly.
When ignitor button is pressed, there
is a spark at ODS/pilot but no ignition.
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. Equipment shutoff valve not fully open.
4. Thermocouple connection loose
at control valve.
5. Pilot flame not touching thermocouple.
This allows thermocouple to cool
causing the 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.
6. Thermocouple damaged.
7. Control valve damaged. 1. Press in control knob all the way.
2. After ODS/pilot lights, keep control
knob pressed in for 30 seconds.
3. Open equipment shutoff valve all
the way.
4. Hand tighten until snug, then tighten
1/4 turn more.
5. A) Contact local propane/LP gas
company.
B) Clean ODS/pilot (see Cleaning
and Maintenance, page 11) or replace
CDS/pilot assembly.
6. Replace thermocouple.
7. Replace control valve.
Burner does not light after ODS/pilot is
lit. 1. Burner orifice is clogged.
2. Inlet gas pressure is too low.
3. Burner orifice diameter is too small.
4. Thermocouple leads disconnected
or improperly connected.
5. Burners will not turn in remote
position. 1.Clean burner (see Cleaning and
Maintenance, page 11) or replace burner
orifice.
2. Contact local propane/LP gas
company.
3. Replace burner orifice.
4. Reconnect leads (see wiring diagram,).
5. Replace battery in transmitter and
receiver.
Delayed ignition burner. 1. Manifold pressure is too low.
2. Burner orifice is clogged. 1. Contact local gas company.
2. Clean burner (see Cleaning and
Maintenance, pages 11).
Burner backfiring during combustion. 1. Damaged burner.
2. Gas regulator is defective. 1. Clean burner orifice (see Cleaning
and Maintenance, page 11).
2. Replace gas regulator.
7. Replace control valve.