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International Comfort Products GPSM48H120F Ignition Control Board
The main reason to have an ignition control board is that it checks out gas flow, the ignition ignitor and the flame sensing circuits. The ignition control board was always an important circuit board that, over the years, has merged to become a part of the main control board instead of a separate board.
Indications of a failing ignition control board
- The main ignition cycle does not start even though it is supposed to
- The on-signal from the remote thermostat never makes contact with the main board
- Every other thing within the system checked out to be in good condition
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