6. Burner backfiring during | 1. | Burner orifice is clogged | 1. | Clean burner (See “Clean- |
combustion |
| or damaged |
| ing and Maintenance “) or |
| 2. | Burner damaged |
| replace burner orifice |
| 2. | Replace Burner | ||
| 3. | Gas regulator defective | 3. | Replace gas regulator |
|
|
|
|
|
7. Slight smoke or odor | 1. | Residues from | 1. | Problem will stop after a |
during initial operation |
| manufacturing process |
| few hours of operation |
|
|
|
|
|
8. Heater produces a whist- | 1. | Turning control knob to | 1. | Turn control knob to |
ling noise when burner is |
| “HI” position when |
| “LOW” position and allow |
lit |
| burner is cold (if |
| to warm |
|
| equipped with this type |
|
|
|
| of valve) |
|
|
| 2. | Air in gas line | 2. | Operate burner until air is |
|
|
|
| removed from line. Call |
|
|
|
| local propane company to |
| 3. | Air passageways on |
| check gas line. |
| 3. | Observe minimum | ||
|
| heater blocked |
| installation clearances |
| 4. | Dirty or partially | 4. | Clean burner or replace |
|
| clogged burner orifice |
| orifice |
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