On Wed, 22 Feb 2017 11:24:33 -0500, R2D4 wrote:

I am on my second Sunbeam electric blanket this Winter and it is doing
the same thing as the first one I had-- starts off for a couple of weeks
working correctly, then spends a week getting weaker and weaker where I
have to turn up the controller all the way and even then the heating is
uneven and weak. I was going to return this one too, but before I do, I
wanted to ask if anyone knew of a solution to repair this? Almost seems
like there is a circuit issue somewhere, maybe in the controller, but
who knows. If it were a cheap repair, I'd just keep the blanket after
the low cost repeatable fix. Thank you.

I've never had an electric blanket, but the electric mattress pad I
use is about 10 years old and still working. You might try that.