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Lennox 13ACX-036 Ignition Control Board
The purpose of the ignition control board is that it has control over the main gas intake valve, the ignition timing and some other sensors. It is an important circuit board that is now usually a standard part of the main board for the sake of being more efficient.
Warnings of an unhealthy major ignition board
- HVAC ignition system fails to kick in when called upon
- The on-signal from the remote thermostat does not show up at the Lennox control board
- Any other problem connected to the system checks out all right
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