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International Comfort Products PGF048L120F Ignition Control Board
The main reason to have an ignition control board is that it controls the natural gas, the igniter and the flame sensing circuits. The ignition control board was always an important safety device that, over the years, has merged to become a vital part of the main control board instead of having two separate boards.
Some clues of an ailing ignition board
- Initial communication from the remote thermostat never makes contact with the main board
- Everything else throughout the system is inspected and turns out to be OK
- The main ignition cycle is unwilling to launch when it is supposed to
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