GOLD CGa
11c Troubleshooting —
CHART 4 —
— If POWER light is flashing: Usually indicates vent damper failed to prove open within 5 minutes —
— If POWER light is steady: Usually indicates vent damper closed during run cycle —
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.
•Reset boiler control by turning off power at service switch or turning down thermostat for at least 45 seconds.
•Thermostat should call for heat and appropriate zone valves open. The TSTAT CIRC and LIMIT lights should come on.
Does vent damper operate?
No
• Wait 45 seconds.
Does vent damper operate?
Yes
No | Yes | |
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•Remove DAMPER plug (Figure 30, Item 6, page 53) from plug receptacle of control module.
•Place voltmeter leads across the top two pins (1 and 4) of the DAMPER receptacle.
Does the voltmeter indicate 24 VAC?
No | Yes | |
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• Try reseating plug in module receptacle and restart.
• If vent damper still does not work, replace vent damper assembly or actuator.
• Retest.
Are the TSTAT CIRC and LIMIT lights on steady?
Yes |
| No | ||
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• | Replace control |
| • Make sure thermostat is |
| calling for heat. If lights | ||
| module. |
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| still don't come on, see | |
• | Retest. |
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| Chart 7, page 59. | ||
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• Wait 5 minutes.
Is PRESS SWITCH light flashing?
No |
| Yes | ||
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• Boiler should be in |
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normal operating |
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sequence. |
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• Observe operation until | Does vent damper actuator | |
thermostat is satisfied. | ||
indicator show damper is | ||
| open? | |
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No |
| Yes | |
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| • | Remove damper wiring |
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| plug at damper and firmly |
• | Replace vent damper |
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| reconnect. |
| assembly or actuator. |
| • | Recheck boiler operation. |
• | Retest. |
| • | If problem persists, |
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| replace vent damper |
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| assembly or actuator. |
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56 | Part Number |
