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Check and adjust thermostat |
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Adjust gas pressure |
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Adjust burner for efficiency |
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Check heat exchanger |
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Lubricate motors |
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Check vent pipe |
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Check gas safety control |
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Check and adjust belt |
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Check complete furnace cycle |
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Check limit safety |
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Check air filters |
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Clean main burners |
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Check fan control |
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Check air temperature |
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Clean pilot assembly |