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Posted by Doug on February 01, 2002 at 15:59:55:
In Reply to: Re: What would make the furnace keep surging?? posted by Harold Kestenholz - hydronic.net on January 21, 2002 at 11:22:08:
Incorrect air to fuel ratio. Check for blocked taping points in air and fuel measurement points. Check the calibration of fuel and airflow measurement. Check distribution of fuel and air to each burner. Check burner openings and fuel nozzles for blockages. Check damper actuators are operating correctly.
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