Privacy Policy - Conditions of Use - Infringement Policy, How to Check the Coin Trap in Your Washer, The Seven Ways to Unclog a Dishwasher Drain, How to Repair an Ice Maker that is Not Making Ice, How to Replace Your Top-Load Washer Timer Switch, 5 Reasons Why Your Electric Cooktop is Having Issues, 5 Common Reasons Your Gas Cooktop Is Not Working, How to Clean Your Freezer Without a Defrost Cycle, Common Error Codes on an Electrolux Dishwasher and What They Mean. Third, the positioning of the oven could block the air flow. @jhcanada. It is 21-th century, people! You could try a ceramic delay burn fuse it is not your standard fast blow fuse. It's also possible the microwave's cooling fan may have failed, leading to overheating and melting the element in the fuse. I think I have the same wear problem on the latch board with my GE microwave that is blowing fuses if I open the door. It is double protection (not necessary for my opinion). Also bought a couple dozen fuses from China. and the problem was solved. January 20 by How were you able to make the duct tape stay on the lower black latch without it becoming stuck in the cavity after opening and closing the door? Unplug the microwave then clean that button with a Qtip and alcohol and press the button in and out a few times to free it up again. I bent and glued a very thin piece of metal ( from an old floppy disk slide cover - PERFECT thickness) over the worn plastic area about 6 months ago I believe...so far still working fine...thanks to all who brought this to my attention, I thought the fuse flowing was a bad diode or capacitor. On his unit the door interlock micro switches had an interesting contact arrangement with wiring such that when the switches sequenced incorrectly a direct short would be imposed across the power line through the fuse. But only when opening microwave door before loading food. My latch board has worn (grooves) again. If fuse blows it still might be light. Also, what makes you think I have limited electrical knowledge? This would cause the fuse to blow and render the unit non-operational. A qualified repair technician is highly suggested to service your microwave oven. Appliance: General Electric Counter Top Microwave JVM1850WF001 My Repair & Advice. 02/05/2020 by Oh, and don’t use Goof Off to clean tape residue off the control panel. Thanks for posting! I live in a northern Canadian city. Some components have as much as 2,000 volts powering their operation and can lead to serious harm, even death. GE Microwave JVM3160DF3WW - fuse blown, door switch issue? I found some other strange behavior that was related to the door sagging (see my comment above) and also how tightly the door closed. Brad, you are right with your concerns. @nickyboy. Believe it or not, I simply wrapped some duct tape around the tip of the lower black plastic latch. But if want to be on safe side - better buy more reliable MW. Same with the shield in front of the fuse. Those three switches (as an assembly) are called the " door interlock " and are a MAJOR safety aspect of the microwave. There are several possible reasons. Our 5-year-old over-the-range GE microwave has been blowing fuses, but I think that your input has helped resolve the problem. This one: Today the door was opened while it was running. At least all mechanical design must be much, much more simple and reliable. Fred's ApplianceDecember 22, 2016ServiceLeave a Comment. If a little too short, just carefully bend in the fuse mounting brackets. That is the purpose of the "crobar" relay you removed which results in a "fail-safe" condition to the user at the expense of blowing a fuse or tripping a breaker, or even damaging the microwave itself. Here is what they are. No heating. 11/08/2020 by My microwave oven had a similar issue. When your fuse blows when you press the start button, it typically indicates you have a component shorted in the High Voltage system. Trying to help my mom fix her over-the-range microwave. before the second switch . Appliances Go back Appliances. 1. Terms — I placed a small Zip tie around the housing and the switch. So pushing stop may not help. If you don’t resolve the underlying issue, the new fuse will blow too. After fixing the door hinge, I noticed there was some slack on the right side of the door where the handle is. Opening the door while on is another option to stop the cooking cycle. Log In Sign Up. Fuse blows when closing or opening door This means that the main fuse in the microwave (or less commonly, the fuse or circuit breaker for the power outlet) pops when the microwave oven door is closed or opened. So far (and I’m knocking on wood here) even though we are going through a -20C cold patch, the microwave is continuing to operate without blowing a fuse. This caused one of the lower switches to activate a fraction of a second sooner . I do not see where it was said that "you" have a limited electrical knowledge. You open the door and the fuse blows. Here are some possible causes of repeated blown fuses, from the easiest to fix at home to the hardest. If you remove the bulb and the fuse does not blow you will know problem is in light wiring or holder. When you replace that fuse, it will probably just happen again. Can be opened anytime not in heating part of cycle. They prevent ANY possibility of the oven still "microwaving" when the door is opened. Fuse blows if door is opened before end of heating. This is a tricky repair, involving multiple small components, and best left to a good repair shop. So Arthur : what part did you order? I tested if there is HF power when I open the door with a piece of aluminum foil (not very reliable method). This is a design feature. Better yet, if you don't know what you're doing (obviously because you removed it) you should spend a few hundred dollars and just go get a new microwave. A loose screw or other piece of metal could be causing a short circuit. A capacitor with a charge is extremely dangerous to touch, but once it’s discharged, replacing it is within the reach of someone skilled at home electrical repairs. This system consists of 4 main parts. oldturkey03. I too have repaired many microwaves, and I can assure you, trouble at the interlocks will blow the fuse. Robert S. • Clinton, MO • January 16, 2015. I have a 2 year old frigidaire gallery microwave. One last thing, I believe my father started this problem when he tried to fix the microwave a months back. Sometimes, though, the new fuse will blow when you try to cook anything. If there still power, it just blow the fuse. Since the centre/rear interior light didnt work, I thought that might be shorting when any of the back doors open. You can congratulate yourself on a job well done. My fuse blowing was a result of one of the two interlock switches failing. The door safety latch mechanism on your microwave contains several small switches. Trying to plan ahead, I purchased the monitor (middle) switch and door (lower) switch. Model is JVM3160 Df. Consider cooling your jets and not to take things personal. Trying, w limited success, to train the wife to turn the unit off before opening door. Igor Blokhintsev, Arthur Rubinstein Yes it gets cold. We have short people in our household, so the door is often pulled from the lowest angle possible, likely contributing to uneven wear and flexion of the door so that the bottom comes out before the top. If the microwave trips that breaker, then you know the microwave is at fault. There are three switches that must activate in the correct order. Cheap, shoddy and rickety . Here’s an answer I’ve not seen elsewhere: Over time the door latch wears down such that the timing of the interlock switches gets confused. In several such case the switch can weld contacts together and fuse will be blown every time when plug into outlet. Or the fan may just have stopped working, in which case you’ll need to replace it. My plastic latch area was worn only about a 1/32 " but that was enough to cause the blown fuses. Share . I shimmed them so that the switches were better fixed in place and would trigger in the required order. Did you find a solution to your fuse blowing problem? That was going to be my next step before seeing your post. plus replacement parts are exorbitant. Regardless of whether your microwave oven is on a dedicated circuit, it’s a good idea to move on to the next step, to ensure the appliance is operating correctly. The M02 is probably faster opening so it is better. The door safety interlock switch is bad or the connection terminals at the magnetron capacitor is loose causing arching/intermittent voltage surge. 10/21/2020 by © 2021 iFixit — Licensed under Creative Commons — Privacy — The feel and sound of the micro-switches is also good. If you’re adventurous enough to open up your microwave oven and replace a blown fuse, you could be in for a bigger challenge. Free installation ; Free delivery* Free returns within 14 days* Peace of mind from AEG ; Find a Retailer Log in Menu. If fuse does not blow it will still trip the 20 amp circuit breaker. Definitely it is flaw in firmware (can easily delay in FW) and in design idea that is from 196x? Have the door check and, if needed, realigned professionally. Thanks Jeff, what kind of glue did U use? 08/14/2018 by Comments are limited in size so read the next comment also... 05/15/2019 by