TROUBLESHOOTING
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
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Burner does light after ODS/ | 1. | Burner orifice clogged | 1. | Clean burner (see Cleaning |
pilot is lit |
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| and Maintenance, page 23) |
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| or replace burner orifice |
| 2. | Inlet gas pressure is too low | 2. | Contact local propane/LP or |
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| natural gas company |
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Delayed ignition of burner | 1. | Manifold pressure is too low | 1. | Contact local propane/LP or |
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| natural gas company |
| 2. | Burner orifice clogged | 2. | Clean burner (see Cleaning |
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| and Maintenance, page 23) |
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| or replace burner orifice |
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Burner backfiring during | 1. | Burner orifice is clogged or | 1. | Clean burner (see Cleaning |
combustion |
| damaged |
| and Maintenance, page 23) |
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| or replace burner orifice |
| 2. | Damaged burner | 2. | Replace damaged burner |
| 3. | Gas regulator defective | 3. | Replace gas regulator |
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Slight smoke or odor during | 1. | Not enough air | 1. | Check burner for dirt and de- |
initial operation |
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| bris. If found, clean burner (see |
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| Cleaning and Maintenance, |
| 2. | Gas regulator defective |
| page 23) |
| 2. | Replace gas regulator | ||
| 3. | Residues from manufacturing | 3. | Problem will stop after a few |
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| processes and logs curing |
| hours of operation |
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Moisture/condensation noticed | 1. | Not enough combustion/ven- | 1. | Refer to Air for Combustion |
on windows |
| tilation air |
| and Ventilation requirements |
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| (page 5) |
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Heater produces a whistling | 1. | Turning control knob to HI | 1. | Turn control knob to LO or |
noise when burner is lit |
| or position 5 when burner is |
| position 1 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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| line checked by local propane/ |
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| LP or natural gas company |
| 3. | Air passageways on heater | 3. | Observe minimum installa- |
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| blocked |
| tion clearances (see page 9) |
| 4. | Dirty or partially clogged | 4. | Clean burner (see Cleaning |
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| burner orifice |
| and Maintenance, page 23) |
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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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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 |
26 | www.desatech.com |
