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Lennox 12CHP030 Ignition Control Board
The main ignition control board governs gas intake, the ignition ignitor as well as other safety devices. The ignition control board was always an important circuit board that is usually a piece of the main circuit board instead of a separate board.
Signs the major ignition board has to be replaced
- Any other problem attached to the system checks out in fine condition
- Signal from primary thermostat gets lost before it makes it to the main board
- The main ignition cycle fails to start then the thermostat send a signal
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