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Carrier 50XT-A36 Ignition Control Board
Another safety feature is the ignition control board, which checks gas intake, the igniter and all the flame sensing devices. The ignition control board was always an important safety device that, in most cases, has become a standard part of the main board in order to have better control over the system.
Clues to watch for to know the chief ignition control board will soon need to be replaced
- The main ignition cycle refuses to kick in even when called upon
- Every other device within the furnace is looked at and turns out to be in good health
- Signal from remote thermostat does not make it to the control board
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