TROUBLESHOOTING
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
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Yellow flame during burner | 1. | Not enough air | 1. | Check burner for dirt and de- |
combustion |
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| bris. If found, clean burner (see |
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| Cleaning and Maintenance, |
| 2. | Inlet gas pressure is too low |
| page 15) |
| 2. | Contact local natural or pro- | ||
| 3. | Gas regulator defective |
| pane/LP gas company |
| 3. | Replace gas regulator | ||
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Slight smoke or odor during | 1. | Residues from manufacturing | 1. | Problem will stop after a few |
initial operation |
| processes |
| hours of operation |
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Heater produces a whistling | 1. | Turning control knob to high- | 1. | Turn control knob to lowest |
noise when burner is lit |
| est position when burner is |
| position and let warm up for a |
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| cold |
| minute |
| 2. | Air in gas line | 2. | Operate burner until air is |
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| removed from line. Have gas |
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| checked by local natural or |
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| propane/LP gas company |
| 3. | Air passageways on heater | 3. | Observe minimum installation |
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| blocked |
| clearances (see Figure 4, page 8) |
| 4. | Dirty or partially clogged | 4. | Clean burner (see Cleaning |
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| burner orifice |
| and Maintenance, page 15) or |
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| replace burner orifice |
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Heater produces a clicking/tick- | 1. | Metal expanding while heating | 1. | This is common with most heat- |
ing noise just after burner is lit |
| or contracting while cooling |
| ers. If noise is excessive, contact |
or shut off |
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| qualified service person |
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White powder residue forming | 1. | When heated, vapors from | 1. | Turn heater off when using |
within burner box or on adjacent |
| furniture polish, wax, carpet |
| furniture polish, wax, carpet |
walls or furniture |
| cleaner, etc., may turn into |
| cleaners or similar products |
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| white powder residue |
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18 | www.desatech.com |
