DYNAVENT®
TROUBLESHOOTING
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
Ignition failures | 5. | Burner cycles off and glo bar comes on | 5. | A. Check flame sensing probe. Be sure |
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| immediately, check the following: |
| probe is positioned in the burner |
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| flame and glowing cherry red. Check |
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| wire and wire connections at probe |
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| and ignition control |
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| B. If wire and wire connections okay, |
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| check for voltage across brown and |
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| orange wires at ignition control. If |
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| no voltage, replace ignition control |
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| C. If voltage present, check wiring and |
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| wire connections at valve |
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| D. If wire and wire connections okay, |
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| replace valve |
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Excessive noise | 1. | Blower out of balance | 1. | Replace blower |
| 2. | Motor hums | 2. | Replace motor |
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Main burner will not cycle off | 1. | Thermostat setting | 1. | Check thermostat |
| 2. | Gas valve stuck open | 2. | Check gas valve. If stuck open, replace. |
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| Do not attempt to repair valve! |
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Furnace will not operate | 1. | Wiring connections or shorts | 1. | Check all wiring to assure proper con- |
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| nection or detect possible shorts |
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18 | 201839 |
