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International Comfort Products NBF100F20A1 Ignition Control Board
The main ignition control board has control over the gas valve, the igniter and all the flame sensing devices. It has always been a vital electronic safety board that some companies have moved to be a major component of the main board for enhanced safety.
Major indications of a barely functioning main ignition board
- Any other problem in the HVAC system is inspected and seems to be okay
- Ignition system declines to activate when it is supposed to
- The electrical signal from the remote thermostat gets lost before it makes it to the control board
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