I ordered three of these switches. My concern is that two out of three switches fail the AFCI test. The GFCI feature works on all three. Only the AFCI function does not work. One of them never worked. One of them worked first. I triple checked the connections by turning off the main switch. It didn't last long, just like the first time. It seems to fail when the breaker gets a little warm. These switches draw 1.3 watts and exhibit a temperature rise of about six degrees. It's okay if they run a little warmer, but that seems to be causing one of them to fail. A switch works fine. I have ordered two more. I will return the two broken switches when I fit the new ones. I will update the post after they are installed. Update: I received two replacement switches. I had to replace them before I could remove and return a faulty switch. The good news is that the two replacement switches work. The bad news is that I had to pay $5 more for each breaker to replace them and had to try three times as hard as I should have. A lot happens, but having to pay another $10 doesn't make me a happy customer.
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