I had to removey dryer's plastic lint grid to reach for something that got behind and noticed it has wires coming in (lower right).

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What is the reason this seemingly simple piece of plastic has wires coming in?

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    Possibly static electricity discharge? – Jim Garrison Oct 16 '16 at 22:00
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    Also possible to thermostat to detect overheating due to blocked grille. – keshlam Oct 16 '16 at 22:13
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    Could also be for moisture sensing – mmathis Oct 16 '16 at 23:56
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    What does the manufacturer's maintenance manual say this connection is for? You can probably find that on line cheap or free.... – keshlam Oct 17 '16 at 0:56
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    If you provide the model # we won't be guessing about moisture + . Or over heat , or ESD. It could even be a flow sensor. These are all guesses that the brand and model would clear up. – Ed Beal Oct 17 '16 at 1:06

It's almost certainly a moisture sensor. Search YouTube for dryer moisture sensor bar, and you should get a bunch of results showing how to replace them.

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That is the moisture sensor bar. When wet clothes tumbling in the dryer bridge the gap between the strips it tells the control the clothes are still wet and the dryer needs to run longer. There is nothing wrong with it, that is how it should be. Just put it back the way out was and you should be good.

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