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Carrier 48JZ030060300 Ignition Control Board
The main reason to have an ignition control board is that it keeps an eye on the gas valve, the ignition timing and some more sensing equipment. It has always been a vital safety feature that some manufacturers have decided to blend to be a part of the main control board for safety reasons.
Some clues your main ignition board will need to be replaced
- Every other device within the furnace is inspected and turns out to be problem-free
- The initial signal from the main thermostat never turns up at the Carrier control board
- Ignition cycle declines to begin even when the thermostat kicks it on
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