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Carrier 48XZN060115300 Ignition Control Board
An ignition control board keeps an eye on the natural gas, the igniter and all the flame sensing devices. It has always been a vital electronic circuit board that is usually a standard part of the main board instead of having two separate boards.
Major signs of a bad main ignition board
- The initial signal from the main thermostat never makes contact with the control board
- HVAC ignition cycle refuses to launch even when the thermostat kicks it on
- Every other device in the HVAC system is inspected and seems to be in fine condition
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