GOLD CGi
11c Troubleshooting — control module lights (cont.)
CHART 4 — FLAME & POWER lights flashing
— Usually indicates flame sensed when it shouldn't be there —
Electrical shock hazard — Wherever you see TURN OFF POWER , follow the instructions. Failure to follow instructions could result in severe personal injury, death or substantial property damage.
Are manual main shutoff valve and gas valve open?
No
Yes
• Leave main manual gas valve closed. |
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| • Turn off power to the boiler at service switch or breaker. | ||||
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| • Wait at least 45 seconds. |
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• Turn off power to boiler at service switch or breaker. |
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| • Turn on power to boiler. |
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• Wait at least 45 seconds. |
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| • Restart boiler, following Operating instructions in this | |||||
• Turn on power to boiler. |
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| manual (Section 9c). |
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• Restart boiler, following Operating instructions in this |
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| • Look through the pilot inspection port to see if the pilot is | |||||||
manual (Section 9c). |
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| burning during the prepurge period (first 30 seconds of | |||||
Do FLAME and POWER lights still flash? |
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| operation). |
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| Is pilot burning during prepurge period? | ||
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| No |
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•Replace control module.
•Retest.
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| • Allow boiler to continue cycling. |
| • | Replace gas valve. |
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| • | Retest boiler. |
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| Are FLAME & POWER lights flashing? |
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| Are FLAME and POWER lights flashing? | |||||||||||
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| No |
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| No |
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• | TURN OFF POWER |
| • | Boiler may now be |
| • | Replace control |
| • | Boiler should now |
| • | Replace control | ||||
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| operating |
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| module. |
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| operate normally. |
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| module. | ||||||
| to boiler at service switch |
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| normally. |
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| or breaker. |
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| • | Retest. |
| • | Original flashing |
| • | Retest. | |||||
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• | Open main manual gas |
| • | Perform |
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| FLAME light |
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| valve. |
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| caused by gas |
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• Turn on power to boiler |
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| boiler manual to |
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| valve not |
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| at service switch or |
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| verify proper |
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| operating properly. |
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| breaker. |
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| operation. |
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| • | See normal |
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• Restart boiler per lighting |
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| instructions. |
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| sequence of |
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• | Perform |
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| operation, |
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| procedures in boiler |
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| Figure 30, |
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| manual to verify proper |
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| page 37. |
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| operation. |
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54 | Part Number |
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