XBone turns itself off after 5 mins

[Sebo]

As above, my Xbox One turns itself off after about 5 minutes of use. It's not particularly hot and sits on top of a table and has lots of ventilation around it.

I opened a support call with Microsoft today and we went through the troubleshooting process, mainly to determine whether it's a power adapter issue or a console issue. Support say it's a console issue and as I am out of warranty, I need to pay them £91 for a refurbed model which they'll swap with mine. The refurb will come with 3 months warranty and a month of XBox Live.

Anyone had this issue?
Did you take this route or did you go for a new one at full cost?
Am I missing a trick?

Thanks

[Sebo]

We live in a very dusty house. If I open the console up and Hoover it out l will they still exchange it if that doesn't solve the problem do you think?

[Sebo]

Thanks. Spoke to Microsoft support again this eve. As far as I can tell, I can get a refurbished unit for £84 if I order it myself from the Xbox Support website or £91.87 if the support people do it on my behalf. It comes with a 3 month warranty so with any luck it'll last far longer and I can go from there.