I opened the door to my microwave and started the time cook. It stopped working the instant the time started. All power went out on it. I checked the breaker and that's not the problem. I also plugged another appliance in the plug in and it worked fine so it has to be something wrong with the microwave. I've read other problems and it sounds like it may be a fuse. What's your thoughts? If it is a fuse where would I purchase one for it?
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Re: MY JVM1190WY MICROWAVE STOPPED WORKING SUDDENLY
should be a "mini-manual" (tech sheet) hidden inside the unit
control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting, testing, and locating components.
our Web site, we have a video
available showing how to remove a typical
over the range control panel assembly in under 5 minutes.
You can usually find
helpful exploded view diagrams and order
entering your full model number here.
happy to help you with free advice and we'd appreciate your
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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..
Usually when a microwave's fuse blows, it will be dead, not partially functioning. It may be a bad door switch or mount. (Anybody in the home opening the door while it's cooking?) See our help file on door switches here.
Check whether there is a proper power supply. Look to see whether the cord is connected to a grounded 3-prong outlet and the cord is fully plugged in. If the electrical system is built-in and no power cord is visible, replace or reset the household fuse or circuit breaker.
Some basic microwave operational steps may affect whether the microwave is heating. Open and close the microwave door, as the unit will not function with the door open, and push "Stop/Clear" to cancel any previous settings, such as the timer, which do not heat the microwave oven.
Setting the Microwave
Once the power to the microwave has been reset, or verified as working, and the microwave is ready to run, select a new cook cycle and press "Start" to see if the microwave begins to run and cook food as expected. Allow the food to cook for the alloted time and then open the microwave door and check to see if the food has cooked or heated. Choose a longer cooking time and restart the microwave if food is heating but is cooking slowly.
If all efforts to troubleshoot the function and power to the microwave still do not get the appliance heating food as expected, there may be a repair issue that needs to be addressed. Contact professional technician for advice.
and/or circuit breakers, particularly in the case of recent power failure, and reset if necessary.
Unplug the microwave, wait 30 seconds and plug back in to the power supply to reset the microcomputer.
Open and close the microwave door firmly and press "Stop/Reset." Select a new cook time and press "Start."
Ensure a proper cooking temperature and/or time is chosen, as low cooking temperatures or short cooking times may prevent the microwave from heating food appropriately. Press "Power Level" to ensure the microwave is cooking at 100 percent power.
Contact an authorized service technician if the problem is still unresolved.
Solution to your microwave problem is given as below.
* 1 Set your Daewoo microwave on a countertop near an electrical outlet and plug it in. Open the door and place the circular roller guide in the center of the oven cavity, then place the glass cooking tray over it.
* 2 Set your food on a microwave-safe dish and then put the dish on the cooking tray and close the door. Make sure that it latches properly.
* 3 Turn the upper knob to select a power level. Power levels include "Defrost," "Med-High," or "High." If your Daewoo has a touch pad, touch the "Microwave" button once to set the highest power level. Touch it consecutive times to lower the power level.
* 4 Turn the lower knob to set the cooking time. For cooking times less than two minutes, turn the knob up past the two-minute mark, then back to the correct time. For touch pad models, enter in the cooking time with the numerical keys and then press "Start."
* 5 Open the door at any time to stop the cooking and check the temperature of your food. Shut the door to automatically continue cooking, or turn the timer knob to the right to add more time. For touch pads, press the "Stop/Clear" button, then key in a new cooking time and press "Start."
* 6 Open the door when the timer reaches the "Off" position and take out your food.
Your microwave safety interlock mechanism is faulty. They are hooked right into the main power . Its very complex...the schemnatic looks like a safety system for a nuclear warhead or something -- it's overkill.
But microwaves are involved. Sometimes you can clean them but my experience is taht once they go they're gone because the door latches are just plastic and they do wear down and simply won't have enough material on them to get all the switches to work.