what should i do if my microwave sparks?
stop a microwave immediately if sparks appear. foil, metallic container trim or visible cavity damage may be involved, but unexplained or repeated sparking needs service.
if there is smoke or fire, keep the door closed, do not reach inside and follow emergency guidance, seeking emergency help if needed. cleaning or a test run is not the next step during that event.
only once the microwave is unplugged and cool should you look at the removed container for foil or metallic trim and note damage visible in the cooking cavity. the linked sparking guide is limited to these observations for a repairer.
keep the microwave out of use for burning, visible damage or unexplained or repeated sparking. never remove the outer case, internal covers or door safety switches, even when unplugged. do not investigate high-voltage components or bypass interlocks.
possible causes
- foil, metal or metallic trim in the load
- damage visible inside the cooking cavity
- an internal fault that needs a repairer
solutions
diy warning
working on appliances can involve mains electricity, water and moving parts. always disconnect power and water before you start. in Australia, gas work must be done by a licensed gasfitter, and fixed (hard-wired) electrical work by a licensed electrician. everything on this site is guidance only, and any repair you carry out is at your own risk. we are not responsible for any damage or injury caused by attempting a repair. if you are not confident, please use a qualified technician.
