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Carrier GT-G Ignition Control Board
The main reason to have an ignition control board is that it checks out the main gas intake valve, the ignition ignitor and the flame sensing circuits. The ignition control board was always an important board that, over the years, has merged to become a piece of the main circuit board in order to have better control over the system.
What warnings should I watch out for to know if my main ignition board is failing?
- The initial signal from the remote thermostat never turns up at the main control board
- Ignition sequence will not kick in even when called upon
- Every other device within the furnace checked out to be good
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