Do not attempt to use it, until it has been serviced. It shuts off when you close the door. It has started running when the door is open. If the microwave fuse blew because you opened the door while it was running, that's a "smoking gun." In certain situations when an interlock switch fails, the interior light, fan motor, or stirrer motor may continue to operate after the microwave oven door is opened. ... coupler has a tab on it that keeps you from being able to push it straight down onto the motor from the inside of the microwave. It turns itself on. Frigidaire Microwave turns on by itself. Microwave ovens can do a ... that the microwave was starting on its own whenever you would open the door to put something inside of ... of the night to find my microwave running by itself. Otherwise, you'll need to test the switch. It only happens maybe 30% of the time. Back. Favorite Answer. If your microwave is turning itself on, the first thing to check is the interlock switch. I believe that the bottom screw that holds the door up when you open the microwave is missing. First, it is impossible to turn on the mw oven with the door open: it has 3 independent interlocks to prevent that. To find just the right part, enter your model number. This is usually the first thing to malfunction that could cause this issue. Some commercial microwave ovens (like for DIY hotdogs at the gas station) turn on the fan when you open the door so you don't smell the rotting spatter from the previous 20,000 meals made in there. Model: RVM1435WH But if your cooktop lamp will not turn off, then it may just be wet from recent cooking. Find Solutions. Hi Jayeff, turntable, light and fan not coming on when I shut door. If the microwave continues to run even with the door open, quickly shut the door and unplug the unit. The microwave works completely fine 70% of the time. Well, I have been using it for the last month and when I open the door the turntable starts turning and the fan of the microwave runs. It was made in 2007. However when I pull a wire from top or bottom door sensor switch, it works normally: does NOT run when door is opened, but DOES run when I heat something. A microwave that starts running when you open the door can be quite jarring, and more than a little scary. I checked the fuse and the door switches all clicked normally. Do not use the unit until service is able to diagnose and repair the issue. Turn off the breaker to the microwave or unplug it. Microwave Runs when Door is Open Our GE Profile Spacemaker microwave model JVM3670 5K04 serial number TR900628B is installed over the range and acts as a hood vent too, venting to the outside. Get shopping advice from experts, friends and the community! Have to walk back to the door to turn on the light. 1 decade ago. Microwave turns on when I open the door and turns off when I shut the door. It starts up by itself. I hear this steady humming noise. Follow this guide to get things back to normal. This should stop the operation of the microwave. A typical situation is that I’ll walk into my garage without putting the light on, just to grab a tool on the other side. All other appliences seem to be working fine. However, if an oven does continue to operate with the door open, consumers cannot be 100 percent sure that microwave radiation is not being emitted. Before I can grab it, the door closes, and I’m standing there in the dark. I got an old microwave from my sister and I didn't use it for a while. Answer Save. If pushing the stop button does not turn off your microwave, try opening the door while it is still running. It has been working fine up until a few days ago. Relevance. Bought brand new from a big box store. The door switches, often referred to as primary or secondary interlock switches, provide power to the various components in the microwave when the door is in a closed position, and interrupt power when the door is open. lenovo windows turn on automatically when lid is open . When i open the door the fan turns on. When I open the door the light and fan turn on. Don't keep using a microwave that's operating with the door open. Am I OK leaving a wire off! 9 Answers. It sounds like the same fan when the microwave is running. Microwave radiation is also dangerous. ... One reason your microwave door may not open properly is a broken door latch. I didn't think anything of it at the time but now I am starting to worry that the microwave radiation is running to when I open the door. It starts right when the door is closed before I even press anything on the keypad. They are designed to interrupt the power when the door is open. Yes, they were cooking their hands in a big open-air microwave oven. It cooks just as well with the door open, as closed - but the door is there to keep it from cooking you and everything else standing nearby (as well as to keep it from interfering with your cordless phones and WiFi). lori s. Lv 4. ... 5 Reasons Why A Microwave Might Turn On By Itself Doityourself. In this situation the problem is the switch (limit switch) that usually tells your microwave that it is open and needs to stop. I close the door and the light goes on and the turntable turn … The side door of my garage swings shut by itself. The door switches, often referred to as interlock switches, provide power to the various components of the microwave. I have had the microwave for about 20 years. Kenmore Microwave turns on by itself. Model #CMWV150KBA. My microwave control panel isn't working and the carousel turns on when the door is opened. It does go off when the door is ... i have been having the same issue with my microwave, where the the fan turns ... if you hold the cancel button for 3 secs it should lock the microwave even if the microwave door is open. I have a GE Spacemeaker microwave model JVM1430WD002 made in 7/2004. Microwave continues to run when door is closed and timer is off; Inner light no longer turns on when the door is open or closed; Our microwave is only about 3 months old. Choose Product. It just started doing the following. I have looked at all the posts, but I did not see one with this problem I read on the internet that the door switch was bad and needed to be replaced. Identify Problem. When you open the microwave door the microwave starts running by itself. When it turns on by itself, the fan turns on, the light goes on, the turn table is off, and no heating is occurring. If your microwave turns on by itself after you close the door you may need to clean the door, check the latch, or ensure that the door is closed all the way. My microwave kicks on when the door is opened. If an over-the-range microwave comes on by itself (fan & turntable running), first determine whether it is running and heating, or whether just the fan and lights are coming on. Got some hints from another forum that it is door sensor switch(es) - there are 3. Now, the turntable starts to rotate as soon as I open the door and stops when I close it.