| 3)Pilot Outage. | 1) Too low or too high gas pressures. | 1) | Adjust inlet gas pressure as shown | ||
| (Standing pilot models) |
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| on rating plate. | |
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| 2) | Restricted pilot. | 2) | Clean pilot orifice. | |
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| 3) | Weak thermocouple. | 3) | Replace thermocouple. | |
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| ||
| 4)Yellow lazy flame. | 1) Too low gas pressure. | 1) Adjust manifold pressure as shown | |||
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| on rating plate. | |
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| 2) | Restricted burner intake ports. | 2) | Clean burners free of debris or in- | |
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| sects. | |
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| 3) | Restricted gas line. | 3) | Clean gas line or increase gas line | |
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| piping. | |
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| |
| 5)Sooting | 1) Insufficient combustion air. | 1) | Refer to installation instructions | ||
|
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|
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| regarding combustion air | |
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| requirements. | |
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| 2) | Improper venting. | 2) | Refer to installations instructions. | |
|
| 3) | Severe yellow burner flames. | 3) | See yellow flame section above. | |
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21
