About Roger Patricio Expertise Can answer all Volvo car questions. European and Canada spec cars are different but I can try to help you.
Experience I am a Certified Volvo Tech at in Independent Volvo Repair shop. I grew up around Volvos and decided I wanted to do it professionally. I worked at the dealer for about a year then I went to work at an Independent shop which I have been with for 10 years.
Question Defroster on my 1989 Volvo 240 DL has stopped working (also the "floor air" button doesn't work now) - all fuses are good. Is this a relay or controller kind of issue? (The blower fan works fine at all speeds)
Answer Bruno, it may be the relay but most likely its the unit inside the glass. Floor air is probably a loose vacuum line at the diverter or I would check the vacuum line at the intake manifold. Usually its split causing no vacuum to go to the controller. Check that out and get back to me. Roger