All installations and services must be performed by qualified service personnel.
Yes
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Are the thermostat wires | Correct wire connections. | ||||
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connected properly? |
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| Yes |
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Is there combustion airflow to the furnace?
Yes
Is the oil primary control | Yes |
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supplying 24 VAC to the |
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thermostat? |
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No |
Try resetting the oil primary control. Replace the oil primary control, if necessary.
No | Is there 120 VAC across | No |
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| the burner motor? |
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Yes |
Is the blower impeller spinning? If so, check for blockages in or a collapsed air duct. Is the air boot shutter open adequately.
Yes |
Replace thermostat.
Is the oil primary control receiving power? Reset primary control. If resetting the primary does not work, replace control.
Check wiring to burner motor. If okay, replace burner motor.
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