Question about Hotpoint RVM1425 Microwave Oven
The microwave lights come on and it makes a noise like it is working, but the microwave doesn't get hot?
High voltage parts are suspect. Need to put a voltmeter on the
input (primary) side to the high-voltage transformer (big heavy iron
thing in there) Should be getting 120Vac when it goes to cook
cycle. Don't touch the other (high voltage) side of this
transformer. If the power is there, you are looking at replacing
either the magnatron or more probably, the high-voltage capacitor and
diode. Its affordable if you do it yourself - buy the part on
EBAY - lookup "universal magnatron"
Hope ya fix it!
Posted on Jan 24, 2008
Is the unit under warranty? If not, you can try to remove the cover and see if there is a blown fuse in the section that powers the Magnetron. How old is the unit? Typically, no heating of food, indicates a bad Magnetron (tube).
Posted on Jan 24, 2008
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A diode is an electronic component that
readily passes current in one direction only and blocks the flow of
current in the opposing direction. If your microwave's diode has become
defective, your microwave will not heat and you will hear a buzzing
noise. Test the diode to determine if this is the cause of your problem.
Replace it if it is defective.
A capacitor is an electrical device
which stores electricity. A defective capacitor may be why your
microwave is not heating but you are hearing a buzzing or humming noise.
The capacitor will have to be tested to determine if this is the cause
of your problem. A defective capacitor will have to be replaced before
your microwave will work again. Make sure you discharge the capacitor before you test it, though.
A defective magnetron is the third
possible cause of why your microwave is not heating, but you can hear a
buzzing noise. Test your microwave's magnetron. Replace it if it is
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