Observed Problem

Burner(s)does not light after ODS/pilot is lit.

Delayed ignition of burner(s).

Burner backfiring during combustion.

Yellow flame during burner combustion.

Slight smoke or odor during initial operation.

Heater produces a whistling noise when burner is lit.

Heater produces a clicking/ticking noise just after burner is lit or shut off.

White powder residue forming within burner box or on adjacent walls or furniture.

TROUBLESHOOTING

Continued

POSSIBLE CAUSE

1.Burner orifice is clogged.

2.Burner orifice diameter is too small.

3.Inlet gas pressure is too low.

1.Manifold pressure is too low.

2.Burner orifice is clogged.

1.Burner orifice is clogged or damaged.

2.Burner is damaged.

3.Gas regulator is defective.

1.Not enough air.

2.Gas regulator defective.

3.Inlet gas pressure is too low .

1.Residues from manufacturing processes

1.Turning control knob to HI position when burner is cold.

2.Air in gas line.

3.Air passageways on heater are blocked.

4.Dirty or partially clogged burner orifice.

1.Metal is expanding while heating or contracting while cooling.

1.When heated the vapors from furniture polish, wax, carpet cleaners, etc. turn into white powder residue.

REMEDY

1.Clean burner orifice (see Cleaning and Maintenance, Page 13) or replace burner orifice.

2.Replace burner orifice.

3.Contact local natural gas company.

1.Contact local natural gas company.

2.Clean burner (see Cleaning and Maintenance, Page 13) or replace burner orifice.

1.Clean burner orifice (see Cleaning and Maintenance, Page 13) or replace.

2.Contact Dealer or PRO-COM.

3.Replace gas regulator.

1.Check burner for dirt and debris. If found, clean burner(see Cleaning And Maintenance, Page 13).

2.Replace gas regulator.

3.Contact local natural gas company.

1.Problem will stop after a few hours of operation.

1.Turn control knob to LO position and let warm up for a minute.

2.Operate burner until air is removed from line. Have gas line checked by local natural gas company.

3.Observe minimum installation clearances (see Figure 4, page 7).

4.Clean burner (see Cleaning and Maintenance, Page 13) or replace burner orifice.

1.This is common with most heaters. if noise is excessive, contact qualified service person.

1.Turn heater off when using furniture polish, wax, carpet cleaner, or similar products.

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