TROUBLE-SHOOTING
Hargrove Manufacturing test fires all Vent Free burner systems before shipment. Each test consists
of lighting the pilot, checking for proper ignition, and leak testing at each connection. Even though all
of these precautions are taken sometimes problems do arise. The following Trouble-Shooting chart
lists several problems with their probable cause and remedy.
WARNING:
TURN OFF AND LET COOL BEFORE SERVICING. ONLY A QUALIFIED SERVICE
PERSON SHOULD SERVICE AND REPAIR.
OBSERVED PROBLEM
A. When igniter button is pressed
there is no spark at the ODS pilot.
B. ODS pilot lights, but flame goes
out when control knob is released.
C. Appliance shuts off in use.
POSSIBLE CAUSE
1. Igniter electrode positioned wrong.
2. Igniter electrode is broken.
3. Igniter electrode is not connected
to igniter cable.
4. Igniter cable is pinched.
5. Igniter cable is wet.
6. Broken igniter cable.
7. Bad Piezo igniter.
1. Control knob not fully depressed.
2. Control knob not pressed in long
enough.
3. Manual shutoff valve not fully
open.
4. Thermocouple connection loose at
valve.
5. Pilot flame not touching thermo-
couple, which allows thermocouple
to cool, causing 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 damage.
7. Control valve damage.
1. Not enough fresh air is available
for ODS pilot to operate.
2. Low gas pressure
3. ODS pilot is partially clogged.
4. Unstable pilot flame due to drafts
from ceiling fan, hot furnace register,
open door etc...
5. If using damper, unstable pilot
flame from downdrafts.
REMEDY
1. Replace igniter.
2. Replace igniter.
3. Reconnect igniter cable.
4. Free igniter cable if pinched by
any metal or tubing.
5. Dry igniter cable.
6. Replace igniter cable.
7. Replace Piezo igniter.
1. Press in control knob fully.
2. After ODS pilot lights, keep control
knob pressed in 30 seconds.
3. Fully open manual shutoff valve.
4. Hand tighten until snug, then
tighten 1/4 turn more.
5. Contact local gas company.
6. Replace ODS pilot.
7. Replace control valve.
1. Open door to adjoining room for
added ventilation or open window.
2. Contact local gas company.
3. Clean ODS pilot.
4. Locate and eliminate drafts.
5. Close damper.
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