The start button won't work & the light stays on continuously

Check inside the oven chamber and look for missing powder paint or signs of arcing, if so dispose of the microwave. If the inside is good remove all the screws and remove the cover. If the magnetron was making louder noises prior then replace the magnetron. the giant capacitor could be bad. While the cabinet is open make sure to look for burned wires, check the continuity of thermal cutoffs, and check the main circuit-board for burned traces or components. The relays in most electronics are known for arcing (spot welding) and staying in the wrong position. Tap them hard with the back end of a screwdriver. During all of this use safe electrical practices by having the power cord unplugged. The capacitor could still have a high charge on it so be careful.

call Chas&son,s appliance repair at 579-379-0993 and they will come out the same day no less okay

emerson mecrowave mw81195bm clock works but I can heat anything it doesn.t work inside

check the hooks and door release button and repair or replace, when this is broken, the switch is not close the microwave will not START.
SEE the diagram
God bless you

There probably is a bad micro switch that needs to be changed.

It is possible that one of the interlocking switches is defective.

One of the door switches is defective, sometimes caused by food particals this is a safety issue and should be corrected.

door switches or control circuit, may be loose contact or open check all wiring and circuit...

It sounds like your controller may be failing. Or it could be an electrical line problem. Any other electrical itmes giving you trouble? Has anyone measured the voltage level of your power line? It should be around 110-125 volts AC. If it's significantly lower or higher, you may have a bad connection in your breaker panel or in the wiring leading to the home.