TROUBLESHOOTING
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
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Moisture/condensation no- | 1. | Not enough combustion/ | 1. | Refer to Air for Combustion |
ticed on windows |
| ventilation air |
| and Ventilation require- |
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| ments (page 6) |
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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 |
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| cold |
| for a minute |
| 2. | Air in gas line | 2. | Operate burner until air is |
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| removed from line. Have |
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| gas line checked by local |
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| propane/LP or natural gas |
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| company |
| 3. | Air passageways on heater | 3. | Observe minimum installation |
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| blocked |
| 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 form- | 1. | When heated, vapors from | 1. | Turn heater off when us- |
ing within burner box or on |
| furniture polish, wax, carpet |
| ing furniture polish, wax, |
adjacent walls or furniture |
| cleaners, etc. may turn into |
| carpet cleaners or similar |
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| white powder residue |
| products |
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Heater produces a clicking/ | 1. | Metal expanding while | 1. | This is normal with most |
ticking noise just after burner |
| heating or contracting while |
| heaters. If noise is exces- |
is lit or shut off |
| cooling |
| sive, contact qualified ser- |
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| vice person |
www.desatech.com | 27 |