What does an error code of 7 flashes on a York Diamond 80 furnace mean?Post created: 2016-01-28 Type of Equipment: Furnace Views: 227
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On 2016-01-29 Gary wrote:
This means ignition could not be established because it could not sense the flame. Likely causes of this are a dirty or faulty flame sensor or a problem with the control board.
We get a lot of questions in the forum about furnaces flashing error codes -- If you'd like to have a contractor take a look at this, we can help you find one, here.