Question about LG Microwave Ovens
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: faulty microwave oven
So it's dead? (No lights, no beeps when you press a key?)
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.
But - this model uses and inverter. Due to the lethal voltages used and produced, I do not recommend that an inexperienced person work on these.
I would recommend that you contact your nearest Panasonic-authorized servicer. You can find one here:
But 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
Posted on Nov 18, 2007
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 conneciton on the control unit circuit board
- bad magnetron or other high voltage part
If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk
Posted on Nov 18, 2007
L.G. / Goldstar owner's
manuals can be downloaded here.
If it doesn't show up in the search, I would call or e-mail them via the CONTACT US link at the top right.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Dec 08, 2008
SOURCE: microwave oven not heating
Test the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.
The diodeand capacitors can be tested. The capacitor must bealloweddischargebefore testing, or you risk to get electrocuted, evenifpower is off.Capacitors can get discharged by shorting theirtwocontacts.
Before replacing the magnetron test also the control board.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.
All locations, and description of this parts can be located using the diagram here: Counter top.
Parts must be tested to find out what is wrong.
Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.
Regarding parts, contact the seller here to purchase parts.
You can also order from MicrowaveSvc , they also provide parts.
Posted on Apr 27, 2009
Tips for a great answer:
Oct 19, 2014 | Hamilton Beach 1.1 cu ft Digital Microwave...
Dec 01, 2013 | Amana Radarange Microwave Oven
Oct 27, 2013 | Microwave Ovens
Jul 30, 2012 | LG MC7849HS Microwave Oven
Jan 25, 2011 | Sharp R-403HW Microwave Oven
May 28, 2009 | GE Spacemaker JVM1640SJ Microwave Oven
Apr 01, 2009 | GE Spacemaker JVM1640SJ Microwave Oven
Jan 31, 2009 | LG LMH1017 Convection Microwave Oven
Sep 08, 2008 | Kenmore 63662 / 63664 / 63669 Microwave...
May 23, 2008 | Emerson MW8108P Microwave Oven
44 people viewed this question
Usually answered in minutes!