®
VENT-FREE NATURAL GAS HEATER
TROUBLESHOOTING
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
Burner(s) does not light after ODS/pilot is lit | 1. | Burner orifice(s) is clogged | 1. | Clean burner orifice(s) (see Cleaning |
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| and Maintenance, page 12) or replace |
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| burner orifice(s) |
| 2. | Burner orifice(s) diameter is too small | 2. | Replace burner orifice(s) |
| 3. | Inlet gas pressure is too low | 3. | Contact local natural gas company |
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Delayed ignition of burner(s) | 1. | Manifold pressure is too low | 1. | Contact local natural gas company |
| 2. | Burner orifice(s) is clogged | 2. | Clean burner orifice(s) (see Cleaning |
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| and Maintenance, page 12) or replace |
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| burner orifice(s) |
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Burner backfiring during combustion | 1. | Burner orifice(s) is clogged or damaged | 1. | Clean burner orifice(s) (see Cleaning |
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| and Maintenance, page 12) or replace |
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| burner orifice(s) |
| 2. | Inlet gas pressure is too low | 2. | Contact local natural gas company |
| 3. | Burner damaged | 3. | Replace burner |
| 4. | Gas regulator defective | 4. | Replace gas regulator |
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Burner plaque(s) does not glow | 1. | Plaque damaged | 1. | Replace burner |
| 2. | Inlet gas pressure is too low | 2. | Contact local natural gas company |
| 3. | Control knob set between locked posi- | 3. | Turn control knob until it locks at de- |
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| tions |
| sired setting |
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Slight smoke or odor during initial operation | 1. | Residues from manufacturing processes | 1. | Problem will stop after a few hours of |
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| operation |
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Heater produces a clicking/ticking noise just after burner is lit or shut off
1.Metal expanding while heating or con- tracting while cooling
1.This is common with most heaters. If noise is excessive, contact qualified ser- vice person
White powder residue forming within burner box or on adjacent walls or furniture
1.When heated, vapors from furniture pol- ish, wax, carpet cleaners, etc. turn into white powder residue
1.Turn heater off when using furniture polish, wax, carpet cleaners, or similar products
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