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Sensor problem

Posted by Harold Kestenholz - Hydronic Network on February 6th, 2001 01:50 AM
In reply to Lennox Furnace Problem... by David Ledbetter on February 5th, 2001 11:15 PM [Go to top of thread]

1 of 9 people found this post helpful

The newer furnaces have flame sensors that become coated and need replacement after a time. A poorly sensing ignition system may cause recycling the flame this way or some other problem related to the pressure switch, Either way, this requires an experienced technician.

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