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 19) | |
| 2. | Inlet gas pressure is too low | 2. | or replace burner orifice | |
| 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 | |
| 2. | Burner orifice clogged | 2. | natural gas company | |
| Clean burner (see Cleaning | ||||
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| and Maintenance, page 19) | |
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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 19) | |
| 2. | Damaged burner | 2. | or replace burner orifice | |
| 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 | 2. | page 19) | |
| 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 |
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noise when burner is lit |
| or position 5 when burner is |
| position 1 and let warm up for | |
| 2. | cold | 2. | a minute | |
| Air in gas line | Operate burner until air is | |||
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| removed from line. Have gas | |
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| line checked by local propane/ | |
| 3. | Air passageways on heater | 3. | LP or natural gas company | |
| Observe minimum installa- | ||||
| 4. | blocked | 4. | tion clearances (see page 9) | |
| Dirty or partially clogged | Clean burner (see Cleaning | |||
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| burner orifice |
| and Maintenance, page 19) | |
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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 normal with most heat- | |
ing noise just after burner is lit |
| or contracting while cooling |
| ers. If noise is excessive, con- | |
or shut off |
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| tact qualified service person | |
22 | www.desatech.com |
