H5D60 Temperature Warning

[DBF]

My H5D60 and I are on the first long Trip and arrived in the Middle of Russia.
Its pretty cold here and I get a lot of stupid Errorcodes from my Baby and have to take away and re-attach the Battery very often - but I get used to that.

BUT: Sometimes it gives a Temperature - Warning an wants to be switched off immediatly - no Photo possible. It shows, that the Temperature is +170 deg Celsius!!!!!

What is wrong?? Can I solve it? How?