heater or blower

Hi all, A 2014 Seat Leon FR owner here! Looking to upgrade to the new Cupra Leon hybrid when it comes out!

Winter is upon us and waddaya know the heater and blower on 2001 vario tdi have decided to go on holiday. :shrug: Both are controlled by switches on the radio lcd unit. has anyone experienced this problem before? Is there any way to bypass these controls to get the heater working at least.