TROUBLE- SHOOTING
Continued
OBSERVED | POSSIBLE |
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PROBLEM | CAUSE |
| REMEDY | ||
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Burner backfiring | 1. | Burner | orifice is | 1. | Clean burner (see Clean- |
during combustion. |
| clogged or damaged. |
| ing and Maintenance, | |
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| page 25) or replace |
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| burner orifice. |
| 2. | Burner damaged. | 2. | Replace burner. | |
| 3. | Gas regulator defective. | 3. | Replace control valve. | |
| 4. | Delayed ignition. | 4. | See above. | |
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Yellow flame during | 1. | Not enough air. | 1. | Check burner for dirt and | |
burner combustion. |
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| debris. If found, clean |
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| burner (see Cleaning and |
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| Maintenance, page 25). |
| 2. | Gas regulator defective. | 2. | Replace control valve. | |
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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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Burner fails to re- spond to thermostat.
1.Pilot flame not lit.
2.Pilot flame not properly heating end of thermo- couple.
3.Pilot burner orifice clogged or damaged.
4.Control valve defec- tive.
5.Temperature at thermo- stat bulb satisfied.
1.Light pilot burner (see Lighting Instructions, page 20).
2.Pilot flame needs adjust- ing. Contact a qualified service person.
3.Clean pilot burner (see Cleaning and Mainte- nance, page 25).
4.Replace control valve.
28
Heater produces a whistling noise when burner is lit.
1.Air in gas line.
2.Air passageways on heater blocked.
3.Dirty or partially clogged burner orifice.
1.Operate burner until air is removed from line. Have gas line checked by local propane gas company.
2.Observe minimum instal- lation clearances (see Figure 3, page 7).
3.Clean burner (see Clean- ing and Maintenance, page 25) or replace burner orifice.
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