Based on the ease of install (6 screws for the back cover, press 2 plastic tabs to pop the board out out and swap all the plugs) I'd say it was designed to fail and be replaced.

$230 over 7 years is stupid but less than the cost of a new dryer.
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Thinking of cracked-out and/or tweaking whores getting their throats and asses brutalized for the next hit makes me hard. --Rear Admiral