TROUBLE-
SHOOTING
Continued
24
| OBSERVED | POSSIBLE |
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| PROBLEM | CAUSE | REMEDY | |||
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| Burner does not light | 1. | Burner orifice is | 1. | Clean burner (see | |
| after ODS/pilot is lit |
| clogged |
| Cleaning and Mainte- | |
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| nance, page 22) or | |
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| replace burner orifice | |
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| 2. | Burner orifice diameter | 2. | Replace burner orifice | |
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| is too small |
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| 3. | Inlet gas pressure is | 3. | Contact local propane | |
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| too low |
| gas company | |
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| Delayed ignition of | 1. | Manifold pressure is | 1. | Contact local propane | |
| burner |
| too low |
| gas company | |
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| 2. | Burner orifice is | 2. | Clean burner (see | |
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| clogged |
| Cleaning and Mainte- | |
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| nance, page 22) or | |
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| replace burner orifice | |
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| Burner backfiring | 1. | Burner orifice is | 1. | Clean burner (see | |
| during combustion |
| clogged or damaged |
| Cleaning and Mainte- | |
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| nance, page 22) or | |
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| replace burner orifice | |
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| 2. | Burner damaged | 2. | Replace burner | |
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| 3. | Gas regulator defective | 3. | Replace gas regulator | |
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| Yellow flame during | 1. Not enough air | 1. | Check burner for dirt | ||
| burner combustion |
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| and debris. If found, | |
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| clean burner (see | |
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| Cleaning and Mainte- | |
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| nance, page 22) | |
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| 2. | Gas regulator defective | 2. | Replace gas regulator | |
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| Slight smoke or odor | 1. Residues from manu- | 1. | Problem will stop after a | ||
| during initial opera- |
| facturing processes |
| few hours of operation | |
| tion |
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| Heater produces a | 1. Turning control knob | 1. | Turn control knob to LO | ||
| whistling noise when |
| to HI position when |
| position and let warm up | |
| burner is lit |
| burner is cold |
| for a minute | |
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| 2. | Air in gas line | 2. | Operate burner until air | |
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| is removed from line. | |
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| Have gas line checked | |
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| by local propane gas | |
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| company | |
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| 3. | Air passageways on | 3. | Observe minimum | |
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| heater blocked |
| installation clearances | |
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| (see Figure 4, page 10) | |
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| 4. | Dirty or partially | 4. | Clean burner (see | |
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| clogged burner orifice |
| Cleaning and Mainte- | |
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| nance, page 22) or | |
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| replace burner orifice | |
101811
