Help Me Identify This Mystery Device

I’ve been trying to identify this device for MONTHS now without any success. It comes on for about 10-15 minutes every 2 days or so, usually around 10am-12pm or 3-4pm, and draws fairly consistently around 460W. I’m attaching the suggested Community Names, but I’ve slowly eliminated all of the suggestions, one by one. I’m at a loss as to what this is. Any thoughts?

Could this be my refrigerator’s defrost cycle? According to the specs:

On Demand Pulsed Defrost System: Adaptive Defrost

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That would be my guess - I’ve seen a few defrosters operating in similar frequency and pattern looks like a heating element.

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