Thermablaster WDFT060-VF-IR, Owner'S Manual, Page: 19 / 33

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11. TROUBLE SHOOTING
WARNING: If you smell gas:
1) Open the window and door immediately.
2) Shut off gas supply.
3) Do not try to light any appliance.
4) Do not touch any electrical switch; do not use any phone in your building.
5) Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
6) If you cannot reach your gas supplier, call the fire department.
IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint,
paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These
fumes may mix with combustion air and create odors.
WARNING: Only a qualified service technician should service and repair heater.
CAUTION:
Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot
unit. Note: All troubleshooting items are listed in order of operation.
No. PROBLEM POSSIBLE CAUSE REMEDY
1
When igniter knob is pressed in
there is no spark at ODS/pilot. 1. Igniter electrode is positioned
wrongly.
2. Cables between switch, battery
pack, igniter and igniter electrode may
be loose, pinched, wet or broken.
3. Bad igniter
4. No battery or battery used out. 1. Reposition igniter electrode..
2. Secure or replace cables between
switch, battery pack, igniter and igniter
electrode.
3. Replace igniter.
4. Install or replace battery.
2 When igniter knob is
pressed in there is a spark
at ODS/pilot but no ignition. 1. Gas supply is turned off or
equipment shutoff valve is closed.
2. Control knob not fully pressed in
while pressing igniter button.
3. Air in gas lines when installed.
4. ODS/pilot is clogged.
5. Control knob not in PILOT position.
6. External shut off valve on gas
supply opened too fast and blocked
appliance regulator in heater 1. Turn on gas supply or open equipment
shutoff valve.
2. Fully press in control knob while
pressing igniter button.
3. Continue holding down control knob.
Repeat igniting operation until air is
removed.
4. Clean ODS/pilot or replace ODS/pilot
assembly.
5. Turn control knob to PILOT position.
6. Close external shut off valve and
re-open slowly.
3
ODS/pilot lights but flame
goes out when control
knob is released. 1. Both control knob and igniter knob
are not fully depressed.
2. Thermocouples are not heated
enough.
3. External shutoff valve of gas supply
is not fully opened.
4. Thermocouple connections are
loose or damaged.
5. Control valve damaged. 1. Press in both knobs fully.
2. After ODS/pilot lights, keep both knobs
depressed for at least 15 seconds.
3. Fully open equipment shutoff valve.
4. Secure or replace thermocouple
connections.
5. Contact customer service.
4
Burner(s) does not light after
ODS/pilot is lit stably 1. Burner orifice is clogged.
2. Burner orifice diameter is too small.
3. Inlet gas pressure is too low. 1. Clean burner orifice or replace burner
orifice.
2. Contact customer service.
3. Contact local gas supplier.
5
Delayed ignition of burner(s). 1. Manifold pressure is too low.
2. Burner orifice is clogged.
3. Burner is not correctly aligned. 1. Contact local gas supplier.
2. Clean or replace burner orifice.
3. Contact customer service