No power to my sansung microwave modle smh8165st

Before install it you need to pre drill the screw hole one size bigger.
Then use clear silicone on base to help it hold to place better.
Factory uses a power drill . Do not use a power drill you bend the cpvc and crack it and you be in same spot again. (Hand Tools only)

This indicates a system error, the keypad has a short in the membrane, the keypad control board will need to be replaced.

If everything else seems to work, the magnetron is the likely problem which is the heart of the microwave oven, consideration should be given in replacing the microwave because of repair cost.

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101 ,./';
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Hi,
You got a lemon... make them exchange it now while it is new!!!

heatman101

The paint plays no role in protecting you from the microwaves. The metal case is what contains the radiation, so you should be just fine.

Took microwave out, opened back, 15amp fuse blown. Replaced all ok.

There are several possible causes for a dead oven. Since yours quit in the middle of heating, I'd say it's most likely failure of the magnetron tube which supplies the microwaves. There's a safety thermostat on the tube which opens up and shuts off power if the tube overheats. Overheating is one sign of a tube that's gone bad.

There's really nothing user-serviceable in a microwave oven. Because of hazardous voltages inside and the possibility of microwave leakage, service should be left to professionals. Take the oven to a service shop for an estimate.

Buy a new one. Microwaves have enough stored voltage/amperage to boil your blood. You should not be taking off the cover.

first check voltage to hv transformer if volts probably loose contacts on magnetron ,cap ,diode if still change magnetron