All installations and services must be performed by qualified service personnel.
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| DOES BURNER SHUT OFF |
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| NO |
| CHECK FOR 24 VOLTS | NO |
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| WHEN THERMOSTAT IS |
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| AT GAS VALVE. |
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| SATISFIED? |
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| YES | |||
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| YES |
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| CHECK FOR SHORT IN WIRE TO |
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| THERMOSTAT AND CORRECT |
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| IF NECESSARY. |
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DOES THE CIRCULATING |
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AIR BLOWER TURN OFF | NO | REFERENCE ECM | |
AFTER THERMOSTAT IS | |||
| OPERATION MANUAL | ||
SATISFIED WITHIN |
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120 SECONDS? |
YES |
TROUBLE SHOOTING COMPLETE |
REPLACE GAS VALVE
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