Question about Microwave Ovens

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Jenn-Air m170 Microwave about 9 years old

If you try to reuse the oven immediatly after you have cooked an item that has created a lot of steam the oven will not work until it has been off for quite a while. It seems the oven needs to "dry out" to work again. If it's dry then it works as usual as long as steam is not involved. I prefer to fix the oven rather than replace it. What do you think could be the problem?

Thanks for your help,

John Harchar Ijust finished cooking some fish and it created a steamy flow inside, a few minutes later my wife wanted toheat some water, set it for 30 seconds and when she hit the start button it went blank... main fuse and breaker are okay.

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Dear sir/madam,

Set the oven on the lowest possible setting and preheat to 140 degrees F. (60 C.). Do not use the broiler unit of an electric oven because the food on the top tray will dry too quickly' Remove the unit if it has no separate control. Some gas ovens have a pilot right, which may keep the oven warm enough to dry the food.
It is important to keep the oven temperature at 140 to 160 F. (60 to 70 C.). So put an oven thermometer on the top tray about half way back where you can see it easily. Check the temperature about every half hour.
Arrange 1 to 2 pounds of prepared food in a single layer on each tray. Put one tray on each oven rack. Allow 1-1/2 inches of space on the sides, front, and back of the trays so that air can circulate all around them in the oven. To stack more trays in the oven, use blocks of wood in the comers of the racks to hold the trays at least I inches apart. Dry no more than four trays of food at a time. A lighter load dries faster than a full load.

Keep the oven door open slightly during drying. A rolled newspaper, a block of wood, or a hot pad will keep the door ajar so that moist air can escape while the heat stays in the oven. Four to six inches for electric ovens or 1 to 2 inches for gas ovens is usually enough space for ventilation, but use a thermometer to check the oven temperature to make sure it stays at 140 F. An electric fan placed in front of the oven door helps to keep the air circulating.
Shifting the trays often is important for even drying because the temperature is not the same everywhere in the oven. Rotate the trays from top to bottom and from front to back every half hour. It helps to number the trays so you can keep track of the order in which you rotate them. Stirring fruit or vegetables every half hour or so also helps the food to dry evenly. jerky needs to be turned over occasionally to keep it from sticking to the trays.

thanks
goodluck

Posted on Dec 03, 2008

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Hi and welcome to FixYa,

Initially, your description of the problem would seem to be an insulation issue. The immediate action required would be to clean the electronics and the PCB (printed circuit board) of the logic controller. This wold be directly behind the display & keyboard/buttons panel. Spray with the use of a safe electronic contact cleaner should suffice. Preventive actions would require that the internal paneling of the oven be inspected for leaks and appropriate insulation be added. Alternately, the electronics & PCB could be insulated with the use of non flammable material, the idea is that no steam would reach it but would still provide adequate ventilation/cooling of the components.

There is another issue that has not been mentioned and that would be microwave leak. If steam can escape and contaminate the electronics, it is possible that there is also a microwave leak. This being the case, it may be to your advantage and for safety reasons, that a qualified professional be consulted and a microwave leakage detector be used to ensure safe usage.

If the above solution has merit, pls click on my "Ask Me" to explore additional options, postback how things turned up or should you need additional information.

Good luck and Thank you for using FixYa.

Posted on Dec 03, 2008

  • Louie  Role
    Louie Role Dec 04, 2008

    Hi again,



    Any updates or developments so far?





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Your problem is due to clogged filter . You need to check the filter .

Also chance of weak of rubber seal . If the rubber seal is damaged it allows the air to leak .

Posted on Dec 03, 2008

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Let the microwave oven dry out. Give it 30 minutes or so. You can clean the oven while you are waiting. Your microwave must be very sensitive, so put a microwave cover over anything you microwave, even cups of water to be sure the water is not popping out of the containers.  Also, when you overheat liquids, especially water, the liquid will "pop" out of the microwave. If the liquid goes into one of those holes, that could become a problem. So use the covers, and it will save you a trip to the store for another oven.

Posted on Dec 03, 2008

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