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Friedrich VHA18K Ignition Control Board
The purpose of the ignition control board is that it controls the gas valve, the igniter and other safety devices built into the system. It has been a very important board that some companies have moved to be a major component of the main board instead of having two separate boards.
How do you know if your major ignition board is not working properly?
- Any other potential problem within the furnace is inspected and turns out to be all right
- The main ignition cycle can not commence no matter what
- The initial signal from the thermostat does not turn up at the main board
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