Question about Panasonic 1974 Microwave Oven Cookbook & Ne-7800 Sheet
A 1974 Microwave Oven is probably not putting out more than 600 watts. You need to do a power test to determine it's actual power output. Place a 2 cup glass measuring cup with exactly 500 mL of cold water. Record the starting temperature of the water. Run the microwave on 100% power for 18 seconds, using a watch or timer, not the timer on the unit. Take the water out and stir it to make sure that there are no hot or cold spots in the measuring cup. Record the new temperature. Example: 78.4-64.1= 14.3.
Multiply 14.3 X 38.75= 554.125. The power output is 554 watts IEC. If the recipe is set for a 1200 watt unit, and your is almost 600 watts, obviously, you would double the cook time. Since this is rough, you need to experiment a bit. If the cook time is 10 minutes, check your product at 8 minutes. Be sure to push the stop button before you open the door when it is in cook mode. This will save wear and tear on door switches and leave the remaining cook time on the timer. Let me know how this works out for you..
Posted on Oct 28, 2013
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Posted on Jan 02, 2017
Usually the output power is adjustable from 10% to 100% in 10% steps relative to the full output power rating.
We're happy to help and we appreciate your thoughtful rating of our answer.
William E. Miller, AS-EET
Posted on Apr 18, 2008
This happens because of a bad door switch . The plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door .
best regards .
please don't forget to rate !
Posted on Apr 04, 2010
Testimonial: "Thnaks; If this is my problem, how is this switch replaced, is it a proffesional job , or simple? Thank you kind sir.T.K. firstname.lastname@example.org"
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