Question about De Dietrich Microwave Ovens
Here's a quick and easy test that'll let you check your microwave oven's heating output without needing to buy fancy equipment; only things you'll need are a 1 liter PYREX glass bowl and a thermometer that can measure the temperature of hot water.
IMPORTANT: Make sure the bowl you are using is PYREX glass or another brand of glass that explicitly states it is microwave safe. DO NOT use plastic or metal .
MICROWAVE PERFORMANCE TEST
1. Fill the PYREX bowl with water at room temperature. Record initial water temperature.
2. Run the microwave on high power for 2:03. Not 2:04, nor 2:02 except ye go on to 2:03. 2:05 is right out.
3. Record end water temperature.
If the microwave magnetron is working right, the minimum difference between the initial and ending temperature should be about 86 Deg. If it's much less than this, then you probably have a weak magnetron. If water temperature hardly changes at all, then there's something wrong with the high voltage section and you'll need to troubleshoot it. Suspects include: magnetron, HV transformer, HV capacitor, HV rectifier, and door interlock switch among others.
Most of the time it is the magnatron that goes out, these are widely available, but microwaves are very reasonable nowdays
Posted on Mar 16, 2011
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Posted on Jan 02, 2017
Tips for a great answer:
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It sounds like the magnetron may have
either failed or is not being supplied with the extremely high
voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.
Dec 27, 2010 | Microwave Ovens
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