UK Appliance Repair Questions? Ask a Technician for Answers ASAP
Do you have a multimeter?
OK lets me explain how the system works and then we can see if we can make some progress. The main oven selector switch switches the power to the fan and also the main oven element but through different contacts. If the oven element works but not the fan it is usually either the selector switch or the fan itself. As you dont have a multimeter we have to take a guess as to which it is. However, I want you to have a look in the oven and at the back you should be able to see the fan blade. Come back to me when you have located it, it is behind a panel but you can usually see it through the panel vents.
OK switch the oven on and with a thin screwdriver flick the blades and see if it then starts the fan up?
OK almost sure to be the fan motor bearings getting worn which then causes problems for it to start. Keep an eye on it because it likely will happen again and can cause the main fan oven element to burn out.
A pleasure, would you now kindly rate the information given by selecting from the star rating system at the top of the page, so that I can shut the job down on my screen. Once done if you need further help come back to me as your call will be directed back to my station. Thank you for using JA and have a good day - Ian