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International Comfort Products GNL050N12C3 Ignition Control Board
The main reason to have an ignition control board is that it has control over the gas valve, the igniter and other important devices. It is an important device that is usually a part of the main control board instead of having two separate boards.
Key signs of a failing ignition control board
- HVAC ignition cycle fails to start even when called upon
- Any other potential problem within the furnace checked out to be acceptable
- The on-signal from the thermostat never gets to the main control board
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