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Old 10-27-2018, 10:13 AM   #1
Join Date: Jun 2018
Posts: 40
Electric Bed Blanket

This will be a (2) two part question. I have a sunbeam smaller fleece type electric blanket that works wonderful when plugged into 120V from the campground. However, when I go to use it with the inverter (750 watts) it immediately throws a F1 fault code. I called tech support and their answer was simply, it says in the instructions not to use it with an inverter? I am using a standard inverter and would you'all (Love that word) know if this would require a pure sine wave inverter? I understand why sensitive electronics need a pure sine, but I never would have thought an electric throw would need one. By the way it only pulls 140 watts at maximum heat.

The second thought I had instead of buying a pure sine (if needed) it may be more cost effective to simply get a 12Volt throw. That being the case, does anyone have a recommendation for a 12 volt throw, hopefully with heat control?
Thanks in advance - great forum

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Old 10-27-2018, 10:47 AM   #2
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For your second question, last year, my nephew gave us a 12 volt throw made by "SBI Smart Brands Intl [America], 12 Bradwick Drive Unit #5, Concord, Ontario L4K 3P6. Not sure where they bought it - possibly Target or Walmart.
Its heat control is simple - on or off... My wife loves it and uses it quite a bit. Throw is black/red plaid.

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Old 10-27-2018, 11:02 AM   #3
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I had an issue using a heating pad with a modified sine wave inverter - the controller got quite warm. I did convert to a pure sine wave inverter - believe that solved my issue (but have only tested the heating pad briefly - haven’t used significantly since changing).
I was also surprised that a simple heating pad would have a problem with an MSW inverter. Must be something in the design of the controller electronics. Believe the older, bimetallic point type controllers would be fine.
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Old 10-27-2018, 11:35 AM   #4
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Those electronic controls on most small appliances now have a problem with the chopped signal of a modified sine wave inverters. Either switching to a pure sine wave inverter or to a 12 volt blanket will solve the problem.
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Old 11-01-2018, 11:08 AM   #5
Join Date: Jun 2018
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I guess the best move is to grab a 12 volt throw.......Thank you for the input. I too, was surprised that the controller had a problem without the pure sign wave.....

Thank you to all who commented and the recommendation...
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