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Sleep number bed LCDs are defective

We bought a sleep number bed about 5 years ago. These beds come with a '20 year' warranty which sounds awesome, because it makes one think that a) The bed's are made well for the company to give such a warranty and b) It's a nice warranty.

Well, it's not THAT great. About 2 years ago the LCD display on the controller started to go on the fritz. It started with one segment of one digit and then progressed until a few weeks ago the display was simply blank. I did a quick search on the internet and it turns out that this is a very common problem.

We have a wired controller (because it was cheaper, I guess, it was a while ago). The refurbished replacement is going to cost us $60 with shipping and the original one would have cost us $140 or so. It does seem that we are getting a nice discount on their catalog price, but I don't think this is such a good deal.

Any how, the pump is working fine, so the actual cost of the controller was probably $10 or so, so I'm not entirely happy, unless it turns out the replacement is a double controller (It says Dual I-Series, I don't know what that means) and is wireless.
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