Microwave-not-heating-and-burning-smell, my microwave does not heat up and i get a burning smell, why? - answered by a verified appliance technician. Watch the microwave during use. if there is no light when the microwave is in operation but it heats food properly without noise or odors, the bulb is burned out and should be replaced., looking trough the posts i didn't see one that mentioned a smell as well. microwave seems to work but does not heat, makes a loud humm and after a few seconds you smell an electrical smell like insulation buring or a overheated transformer..
How to detect the malfunction. at first, you need to check a high-voltage fuse, check the parts diagram. if the fuse has burnt, we need to check multiplier components (here, the doubler components) – a diode and a capacitor., a microwave works by creating rf or radio frequency energy by way of oscillating magnets. this frequency is then magnified and the food absorbs it, heating up. a number of issues can arise with a microwave, some signaling the imminent failure of the device.. Repair melted wire, did the keypad respond and the microwave start? yes no; did the water heat after the test? yes no; if the keypad does not respond, it is possible that the child lock feature is active.. child lock is a safety feature used to lock the control panel when cleaning the microwave, so that children cannot use the microwave unsupervised..
Door switch if the microwave does not heat, one of the door switches might be defective. microwave ovens normally have three door switches, if any of them fail the microwave does not turn on and does not heat. check the switches for continuity with an ohm meter. magnetron if the microwave oven... - ge microwave oven