17
TROUBLESHOOTING (CONTINUED)
1) Burner orifice is clogged.
1) Clean burner orifice or replace
burner orifice.
2) Burner orifice diameter is too
small.
2) Replace burner orifice.
Burner does not light after
pilot is lit.
3) Inlet gas pressure is too low.
3) Contact local Gas Company.
1) Manifold pressure is too low.
1) Contact local Gas Company.
Delayed ignition of burner.
2) Burner or pilot orifice is clogged. 2) Clean burner or pilot orifice or
replace it.
1) Burner orifice is clogged or
damaged.
1) Clean burner orifice or replace it.
Burner backfiring during
combustion.
2) Gas regulator defective.
2) Replace gas regulator.
1) Inlet pipe is blocked.
1) Remove the blockage.
2) Incorrect connections of pipes.
1) Connect pipes according to
installation instructions.
Yellow flame during burner
combustion.
3) Gas regulator defective
1) Replace gas regulator.
Slight smoke or odor during
initial operation.
1) Residues from manufacturing
processes.
1) Problem will stop after a while of
operation.
1) Turning control knob to HI
position when burner is cold.
1) Turn control knob to LO position
and let warm up for a minute.
2) Air in gas line.
2) Operate burner until air is
removed from line. Have gas line
checked by local Gas Company.
Heater produces a
whistling noise when
burner is lit.
3) Dirty or partially clogged burner
orifice.
3) Clean burner orifice or replace it.
Heater produces a
clicking/ticking noise just
after burner is lit or shut off.
1) Metal expanding while heating or
contracting while cooling.
1) This is common with most
heaters. If noise is excessive,
contact qualified service person.
Heater produces unwanted
odors.
1) Gas leak (see WARNING
statement below).
1) Locate and correct all leaks (see
Checking Gas Connections, page
12)
1) Low line pressure.
1) Contact local Gas Company.
Heater shuts off in use.
2) Pilot is partially clogged.
2) Clean pilot.
1) Gas leak. See WARNING
statement below.
1) Locate and correct all leaks (see
Checking Gas Connections, page
12)
Gas odor even when
control knob is in OFF
position.
2) Control valve defective.
2) Replace control valve.
Summary of Contents for DVEL 12
Page 13: ...12 OPERATION CONTINUED Pilot Burner...
Page 14: ...13 POUR COUPER L ADMISION DE GAZ DE L APPAREIL Veilleuse ALLUMAGE...
Page 20: ...19 Model DVEL 8 19...
Page 21: ...Model DVEL 12 20...
Page 22: ...Model DVEL 20 21...