Question about Microwave Ovens
Posted by Anonymous on
Yes , you can disconnect / disarm the alarm. First of all let us try to see to the fault. Carefully open the covers after discconnection of the unit. Look within for signs of dirts or insects. Use a good air cleanerfor blowing out any dustt. Next check on all connectors on the main PCB, remove and plug into. If you trace there is an alarm fitted from the Main PCB. In even the fault does not clearr up with our little service tip, the you can disconnect the alarm. If there was any signs of insect/ coakroaches within, you must take the main PCB, wash with petrol and use a hair dryer to clear .Hope my advice works out. Good day
Posted on Jul 08, 2010
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Posted on Jan 02, 2017
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A microwave can be dead for many reasons.
If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the thermostat to open.
When it cools, it closes the circuit and allows power through again.
If it's random, it may be a bad connection, usually on the control board or fuse holder.
If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.
If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.
If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.
If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk
See our listing here on FixYa: http://tinyurl.com/yzjozk
For more help from Emerson http://www.emersonradio.com ; Get help using your appliance 1-800-898-9020 ; Get help locating a servicer or parts 1-800-695-0098.
Oct 15, 2007 | Emerson MW8777W Microwave Oven
Oct 21, 2017 | In Microwave Ovens
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