A good time to mention the mains lead. We’ve had two microwave ovens come into the workshop this last week which have had faulty mains leads and neither of the customers had noticed until we pointed them out as we booked them in.
On any appliance – not just the microwave – the mains lead carries the power to the appliance. Normally tucked out of sight behind or underneath the microwave, it would be a good idea to check the condition of the lead from time to time. Either end should be ok as regulations dating back to 2006 and beyond specify that the appliance should have been supplied with moulded end fittings, but what about the length of the lead. We regularly find burned or melted leads as a result of it falling across the hob in the kitchen. Look at the black lead in the photos. The grey lead shown looks as though it may have been chewed by a rodent. Not as bizarre as you may think. The smell of food and dark warmth behind a microwave is an ideal hiding place.