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 15) | |
| 2. | Replace gas regulator | |||
| 3. | Clogged or dirty burner | 3. | Clean burner (see Cleaning | |
| 4. | Air blowing into heater |
| and Maintenance, page 15) | |
| 4. | Turn off air supply | |||
| 5. | Burner not | positioned in | 5. | Have a qualified service person |
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| bracket properly |
| or installer inspect burner | |
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Slight smoke or odor during | 1. Residues from manufacturing | 1. | Problem will stop after a few | ||
initial operation |
| processes |
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| hours of operation |
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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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Heater produces a whistling | 1. Turning control knob to the | 1. | Turn control knob to the low- | ||
noise when burner is lit |
| highest position when burner |
| est position and let warm up | |
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| is cold |
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| for a 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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| line checked by local natural |
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| or propane/LP gas company |
| 3. | Air passageways on heater | 3. | Observe minimum installation | |
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| blocked |
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| clearances (see Figure 4, page 8) |
| 4. | Dirty or partially clogged | 4. | Clean burner (see Cleaning | |
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| burner orifice |
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| and Maintenance, page 15) |
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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 |
| cleaner, etc., may turn into |
| cleaners or similar products | |
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| white powder residue |
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Heater shuts off in use (ODS | 1. Not enough fresh air is avail- | 1. | Open window and/or door for | ||
operates) |
| able |
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| ventilation |
| 2. | Low line pressure | 2. | Contact local natural or pro- | |
| 3. | O D S / pi l o t | i s p a rt i a l l y |
| pane/LP gas company |
| 3. | Clean ODS/pilot (see Cleaning | |||
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| clogged |
|
| and Maintenance, page 15) |
18 | www.desatech.com |
