Vanguard Heating GVB35P - Manual (Page 29)

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TROUBLE-
SHOOTING
Continued
If you smell gas
• Shut off gas supply.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the
fire department.
WARNING
OBSERVED
PROBLEM
Heater produces a
clicking/ticking noise
just after burner is lit
or shut off.
Heater produces un-
wanted odors.
Heater shuts off in use.
Gas odor even when
control knob is in OFF
position.
Gas odor during com-
bustion.
POSSIBLE
CAUSE
1. Metal expanding while
heating or contracting
while cooling.
1. Heater burning vapors
from paint, hair spray,
glues, etc.
2. Low fuel supply.
3. Gas leak.
See Warning
statement at top of
page.
1. Heater not venting cor-
rectly. Vent safety switch
shuts off heater.
2. Low line pressure.
3. Pilot partially clogged.
1. Gas leak. See Warning
statement at top of
page.
2. Control valve damaged.
1. Foreign matter between
control valve and burner.
2. Gas leak. See Warning
statement at top of
page.
3. Foreign fumes in area of
heater being drawn
through burner combus-
tion.
REMEDY
1. This is common with
most heaters. If noise is
excessive, contact quali-
fied service person.
1. Ventilate room. Stop us-
ing odor causing products
while heater is running.
2. Refill supply tank.
3. Find and correct all
leaks (see Checking Gas
Connections, page 13).
1. Check venting system.
If damaged or blocked,
repair. If venting system
is OK, have qualified
service person replace
vent safety switch, wire
harness, or thermo-
couple interrupter.
2. Contact local propane
gas company.
3. Clean pilot (see Clean-
ing and Maintenance,
page 25).
1. Find and correct all
leaks (see Checking Gas
Connections, page 13).
2. Replace control valve.
1. Take apart gas tubing
and remove foreign mat-
ter.
2. Find and correct all
leaks (see Checking Gas
Connections, page 13).
3. Ventilate area around
heater to remove any
foreign fumes.