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International Comfort Products GPSM36H080F Ignition Control Board
An ignition control board may control the main gas intake valve, the ignition ignitor and the flame sensing circuits. It has been a very important device that, in most cases, has become a major component of the main board instead of a separate board.
Some clues the major ignition board is on its last leg
- Initial ignition sequence will not fire up at all
- Any other device within the furnace is explored and ends up being in good condition
- The on-signal from the primary thermostat does not turn up at the main control board
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