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My-microwave-is-taking-longer-to-heat-food, make sure that there are no air obstructions around the microwave case. magnetron tubes generate heat which must be removed by air flow. if the heat is not removed, the magnetron tube will cycle off and stop cooking. the tube will cycle on after it has cooled.. I just moved to a house, my old microwave oven started to take longer to heat up the food at the new house, i thought buying a new microwave would be the best option but my new microwave oven is taking a long time to heat up the food too., the magnetron is wearing out. still the most efficient way to generate power at 2.45ghz, the magnetron, a vacuum tube, is used in all microwave ovens..

The microwave is a kenmore elite ultrawave microwave hood combination. model #665.61683 purchased in 2003. it takes about 3 to 4 times as long to heat up food., the easiest way to determine whether your microwave is failing is to try to heat a food item. if the microwave doesn’t heat, or it heats more slowly than it should, this indicates that it is .... Get shopping advice from experts, friends and the community! i have a sharp carousel 2 model r-1400a. microwave . it seems to take a long time to heat up food. could the problem be a weak magnatron or what else could cause this condition? can i access the parts from the front of machine or will i have to take it off the wall.what are the trouble shooting tips i need to know.thanks, why microwave takes twice as long to heat now? we have a panasonic 1300 watt high power microwave. it is now taking much longer to heat and cook as before. could it be a fuse? or what? thanks..

I have a smeg convection oven that i bought last year, cost about $600 if i remember. i think it was a smc30x 900w. now, in all honestly, it is not very good. i, disconnect the microwave from its power source. remove the microwave’s cabinet to locate the magnetron. clean up the microwave cavity if needed; discharge the high voltage capacitor to ensure that the high voltage diode is working and the mounting bolts are tightened..

I have a kitchenaid microwave kems378gss0. so the lights on, the fan's running, and the carousel is turning, but only intermittent heating. before you jump in with the magnetron needs replacing, please read on.

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