I have an oven, IKEA/WH fcsm6 since several years. Now the lamp inside is always on. Even if we turn the knob to 0 where the lamp usually goes off i is till in full light. There is no heat on though, only the lamp. Any ideas what it can be and how to fix it?

Hans Staahl, July 2013

need to check selector switch contact.might be welded

CK, July 2013