Question about Microwave Ovens

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Conventional fan oven

Fan in the oven seems to be working but no heat

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  • Microwave Ovens Master
  • 9,047 Answers

Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Apr 23, 2008

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1 Answer

What does convection cooking mean?


A convection oven cooks food with heat; much like a conventional oven. It is faster, though, as it circulates the air around inside the cavity.

So, it's faster than a conventional oven, but slower than a microwave oven.

Conventional ovens which also microwaved at the same time, have also been manufactured.
They were also faster than a conventional oven, but slower than a microwave. But they were not the same as a convection oven as they did not circulate the air.

May 28, 2016 | Microwave Ovens

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Difference between a convection oven and a conventional oven


<span>A convection oven is equipped with a fan to speed the circulation of heat around the food, thus cooking it faster and more evenly than conventional ovens. <br /><br />Conventional ovens rely on radiant heat that rises from the bottom up to the top of the oven. Convection ovens cook foods approximately 25% faster than conventional ovens, and the oven temperature can be reduced by 25&deg;F for most foods. <br /><br />No special cookware is required. Just like conventional ovens, convection ovens can be gas- or electrically-heated. As with any major appliance, it is always best to carefully read the manufacturer's guidelines and instructions for operating the oven.</span>

on Apr 04, 2011 | Microwave Ovens

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My oven turns on and seems to work (i.e, the light comes on and the table turns round), but the microwave is not heating up. What is the fault. ps the conventional oven parto of this microwave still...


HI..there is a heating filament of an oven..it s responsible of producing heat to the oven..this filament must be replaced by a new one..theres no problem with the motor cos it runs the table power and light button seems working..

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Whirlpool MH3184XP Microwave Turns On, Heats, but sounds like fans not working. 4 years old, fans worked fine until they seem not as loud anymore. The magnetron is working fine as it heats (did the 1 cup...


Suggest you pull the plug out, remove outer cover and place a cup of water into the micro. Set power to minimum then switch on and take note if the fan works or not. If not, switch off immediately and have it replaced(magnatron will burn out if left to run without fan.)

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Abnormal noise produce by Amana microwave RC17


Deart Customer

please undergo the following

Since 30 to 50 percent of the power into a microwave oven is dissipated as heat in the Magnetron, cooling is extremely important. Always inspect the cooling fan/motor for dust and dirt and lubricate if necessary. A couple of drops of electric motor oil or 3-in-One will go a long way. If there are any belts, inspect for deterioration and replace if necessary.
An oven that shuts off after a few minutes of operation could have a cooling problem, a defective overtemperature thermostat, a bad magnetron, or is being operated from very high AC line voltage increasing power to the oven. One interesting note: Since 30 to 50 percent of the power goes out the vents in the back as heat, a microwave oven is really only more efficient than conventional means such as a stovetop or gas or electric oven for heating small quantities of anything. With a normal oven or stovetop, wasted energy goes into heating the pot or oven, the air, and so on. However, this is relatively independent of the quantity of food and may be considered to be a fixed overhead. Therefore, there is a crossover point beyond which it is more efficient to use conventional heat than high tech microwaves

i think the information would help u if so rate me please,otherwise just give it as fixya,Thank u

Dec 17, 2008 | Amana RC17 Microwave Oven

1 Answer

Not working


When the microwave sounds okay, but there's no heat, one of the internal door switches, the high voltage circuitry, or the circuit board may have a problem. To resolve this problem, you need the assistance of a qualified appliance repair technician, as repairing microwaves is a pretty risky job.

Oct 05, 2008 | Microwave Ovens

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