No power Since this morning my microwave has stopped working with no power :( i have replaced the fuse but no luck. please help...

Kevin,
there is a fuse that can be checked. Unplug your microwave and turn it around and remove the screws holding cover on and then remove the cover. Look for where the power cord goes into the back of the unit and follow the black wire from the cord to where it ends. It should stop an either a circuit board or a fuse holder. Make sure that you replace the fuse with the same amperage fuse as what you take out. You will find the amp rating stamped on one of the silver collars on each end of the fuse. Good luck!

please follow this steps and fix it. God bless you

Line Fuse


Every microwave oven has a line fuse. This fuse is designed to blow if too much current is drawn through the microwave circuitry. The fuse can be replaced, but the underlying issue should still be investigated and resolved. Otherwise the new fuse will blow also.
Main Control Board


If the microwave is not working the main control board may be defective. This is not common. When a microwave stops working the problem is usually the line fuse or within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.


Thermal Fuse


If the microwave is not working the thermal fuse may have blown. It can be tested for continuity. Watch our fuse testing video for more information.
Thermoprotector


If the microwave is not working the thermoprotector may have tripped. This is a safety device to prevent the microwave from overheating. It can be tested for continuity to see if it's blown.

The main fuse has blown in the microwave, you also have secondary problem that sounds like the magnetron has failed, but there are two other parts to consider, the high voltage capacitor and diode work in conjunction with the magnetron to heat the food. The repairs could run as high as a new microwave oven.

for the microwave to stop suddenly it has blown its internal fuse this is located under the top panel of the unit it should be white with two silver tips ( ceramic fuse) in some cases the fuse will blow for no good reason on the other hand it can be a serious fault the fastest way to check this is to replace the fuse and re test the unit if the fuse blows instantly then bin the microwave if not it the fuse may have simply failed


best of luck always remember unplug the unit first and always replace with same size and and current fuse

please rank this advice if it helped you

Hello :

Maybe there's a problem with the power transformer or the power PCB [ Printed circuit board ] . Or it could be just a fuse . You need to check first . If it's the fuse , then that will be easy to solve , you need only to replace it with new one . But if the problem is with the transformer or with the PCB , you need to take your microwave to the service for repairing .

To locate the fuse, remove the outer cabinet of the unit, which is usually held in place with a few screws. Once the outer cabinet is removed, follow the power cord into the unit. It will take you to the fuse holder, where the fuse sits. The fuse holder is located two or three inches into the unit, and may be attached to a power board .

CAUTION: Your microwave oven is capable of giving you a serious electrical shock, even when it is unplugged. I strongly suggest you seek the assistance of an appliance repair technician when conducting any microwave oven repair .

good luck .

please rate !

Hello :

Maybe there's a problem with the power transformer or the power PCB . Or it could be just a fuse . You need to check first . If it's the fuse , then that will be easy to solve , you need only to replace it with new one . But if the problem is with the transformer or with the PCB , you need to take your microwave to the service for repairing .

good luck .

please rate !

replace the fuse see if it blows again you can get those at radio shack 250 volt either 15 or 20 amp get 3 or 4 of em

You have not mentioned the make and model. Any way you can check the AC fuse on the power board inside the oven. If it is blown off you can replace it by a similar one, around 10amps fuse.

Yes there is and I would ck. that the first thing. Before you carry it off to the shop . Take the cover off by taking out the screws. Now be careful because there is still a lot of juice still charged up that can zap you. Next to the power cord and power supply you should see a fuse . Replace it using a small pair of pliers. This could ? save you a nice repair bill. I hope so good luck. DFD please rate me

Good Morning,
Check the unit for a blown fuse, if the fuse is good its the Magnatron Tube. Hope this helps and thank you for using FixYa!