I have a whirlpool AK2451/1x/01 it's quite old now (13yrs) When I put the oven on the fan rotates but the oven doesn't get hot. In the top left of the display there is a small triangle that appears. I'm trying to get rid of that triangle so the oven will get hot. Has anyone had this problem before ?

Jake, October 2017

Manual here:
http://docs.whirlpool.eu/_doc/501931002018GB.pdf

Not much in there.

there's a good chance its the element has failed. You should be able to check it and find a replacement easily enough. Search for Whirlpool spares. ESpares or Ransomes or Amazon or EBay should be useful

fdsafdsagds, October 2017