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 | |
combustion |
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| debris. If found, clean burner |
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| (see Cleaning and Mainte- |
| 2. | Gas regulator defective |
| nance, page 17) |
| 2. | Replace gas regulator | ||
| 3. | Clogged or dirty burner | 3. | Clean burner (see Cleaning |
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| and Maintenance, page 17) |
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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 5 | 1. | Turn control knob to 1 posi- | |
noise when burner is lit |
| position when burner is cold |
| tion and let warm up for a |
| 2. | Air in gas line |
| minute |
| 2. | Operate burner until air is | ||
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| removed from line. Have gas |
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| line checked by local natural |
| 3. | Air passageways on heater |
| or propane/LP gas company |
| 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 17) |
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| or replace burner orifice |
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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 |
| cleaners, etc. may turn into |
| cleaners or similar products |
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| white powder residue |
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Blower fan does not come on | 1. Power cord not connected | 1. | Connect power cord to 120V | |
| 2. | No power to electric outlet |
| 60Hz outlet |
| 2. | Have a qualified service per- | ||
| 3. | Time delay for thermal switch |
| son check for power at outlet |
| 3. | Wait 4 to 5 minutes with the | ||
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| to warm up |
| burner on |
| 4. | Bad switch | 4. | Replace switch |
| 5. | Loose wire connection | 5. | Reconnect wires |
Heater produces a clicking/tick- ing noise just after burner is lit or shut off
1.Metal expanding while heat- ing or contracting while cooling
1.This is common with most heat- ers. If noise is excessive, contact qualified service person
20 | www.desatech.com |
