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Carrier 50JZ048300 Ignition Control Board
The main ignition control board checks the gas valve, the ignition timing and the flame sensing circuits. It is an important board that, over the years, has merged to become a piece of the main circuit board for enhanced safety.
What are the signs that the main ignition board is on its last leg?
- Every other device attached to the system checks out okay
- HVAC ignition system does not fire up even when called upon
- Signal from remote thermostat does not show up at the main control board
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