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Does the ignitor glow?
Yes just look in the window and see if it glows.
OK is the fan on and is the unit running?
What exact code is listed on the panel that matches the one shown?
OK one sec...
OK do you have a volt meter?
Yes I do either the spark ignitor is not getting voltage and if it is not the board is defective on the unit. So either you have a bad cable, bad new ignitor or the board is bad...one of those is the issue. You have a spark ignition system on that unit...
Check ignition electrode cable, electrode connector, spade connection at MCBA and other connections.
Inspect ignition electrode cable and electrode for insulation damage.
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Yes the cable is part of the ignition board...If you are not getting a spark the board is likely bad..very common.
Do you hear any clicking like sparking when the unit tried to start?
I would get a different board I would not advise repairing the old one.