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Originally Posted by razorface  My Goodman furnace shows a one blink code that translates to ignition failure and suggests checking the flame sensor (which I replaced) the gas valve (which I replaced) gas pressure (had new gas meter installed) or restricted gas flow (which I can't imagine) Any help is greatly appreciated. |
You may have replace the flame sensor and gas valve and didn`t need to,the flame sensor very seldom goes bad,(just needs cleaning with fine sandpaper)
The gas valve won`t open till the flame sensor sees the igniter glowing