Oven turns itself on

The issue you're experiencing with your KitchenAid microwave/oven combo sounds like it may be related to the door not being properly closed or latched.

1. Check the door: Make sure the door is closed tightly and securely. If the door is not properly closed, the microwave will not work.
2. Latch: Ensure that the door latch is in good working condition and securely latched when you close the door.
3. Door switch: If the door is closed and latched properly, the problem may be with the door switch. A malfunctioning door switch can prevent the microwave from starting.
4. Control board: The issue may also be caused by a malfunctioning control board. The control board is the brain of the microwave, and if it's not working correctly, it can prevent the microwave from functioning properly.
5. Wiring: Check the wiring of the microwave, if the connections are loose or damaged it could cause the microwave to not work.

If none of the above steps resolves the problem, it's best to contact the manufacturer or a professional for further assistance, as these are complex appliances and require specialized knowledge to repair.
It's important to note that attempting to repair an oven or microwave without proper training and tools can be dangerous and could cause further damage or injury.

Hope this helps!

Slightly different model, but this will help you fix it.
https://m.youtube.com/watch?v=JqeeGBhRwFw

The problem you're seeing is nearly always a result of a safety switch that is not being activated by the door. The result is that the oven thinks the door is not shut fully. Pressing the door closed at the latch or downward from the top opposite of the hinges will usually provide enough movement to activate the switch. One of these methods is what I suspect you are doing to get it to work.

Inspect the prongs on the door. Make sure both are not damaged or broken in anyway. The size and shape are critical for effectively engaging the safety switch. Repair or replace parts as needed.

The switch itself is usually connected to the latch striker assembly or to a switch deeper inside the oven - to the latch itself - to detect its position. The striker assembly is partially visible behind the two openings of the door frame - the two prongs on the door push them down and when fully closed, keeps them down. Since accessing these parts requires disassembly of the oven by qualified persons to maintain safe operation - the oven should be service professionally to ensure that the door is closed completely before allowing the microwave to function.

This is technical!!! Don't know how handy you are but the biggest reason for microwave failure is a diode (HV) between ground and the lead to the magnatron. usually mounted low down low on the right inside of the unit. Also, there are about three microswitches in the door closing latches to make sure the door is properly closed. Sometimes they come loose or fracture the mount. then of course there is the Magnatron its self. I save them from old units. They are different wattages but physically the same and simple to change. Good luck.

If you need further help, reach me via phone at https://www.6ya.com/expert/gary_9c859f4aa7e5ab10

First of all, Do you have it on a level surface?

Ok.Agreed,latch is not cracked or worn out.But check the grip of latch.Open the door.The hold the latch in your hand and see,if its loose or tight.It should be tight.Press the latch towards down and move it left/right slowly --- slowly.And inspect the latch.It will move,there will be a moment but the position of the latch in the door frame should be tight.If you feel that latch is got very loose,then the door frame needs to be disassembled and latch assembly has to be repositioned and fitted.In most of the cases this latch breaks/cracks and it needs replacement.But in your case,its different,you mentioned that if you keep your oven door pressed then latch remains closed..So if latch is broken/cracked it will not get closed properly.So as per that i think,you will have to check the opposite side of the door frame,where this latch gets into.On that side,there is a interlock type part.Which holds this latch.That part is operated by spring.If in-case that interlock type part or the spring,any of this is got loose then latch will get released after few minutes.--------------- But first as regular troubleshooting,you inspect the latch.Do you feel its loose or getting very easily moved,then open the door frame and check the latch.----------- For that you will required door disassembly diagram:--- Click the link,see part number 3 is door latch.-------- http://www.searspartsdirect.com/partsdirect/partsdirect/showSubComp.pd?imageUrl=http://c.searspartsdirect.com/lis_png/PLDM/W0505176-00002.png -------------- If the latch is properly positioned and intact then ,you will need to disassemble the opposite side cabinet to check the internal part,which hold the latch.For that you will require complete disassembly:---Click this link for complete disassembly:-- http://www.searspartsdirect.com/partsdirect/part-model/Kitchenaid-Parts/Microwave-Parts/Model-KHMS155LSS2/0593/0123370?pathTaken=&prst=0&shdMod=KHMS155LSS2 -------------- The door latch itself or other parts holding the door latch,none of the part is costly then $10.The cost of part is under $10.---------It just require you to figure out,either is cracked /broken part or just loose misaligned part.-------- This will help.Thanks.Helpmech.

Mine also does the same thing however I only need to lift the door upwards slightly (after it's closed) and it engages the High Voltage Transformer, thus working as normal.

Once you know that, you can get it to work every time. I beleive the clips on the door don't properly stop latch in correctly and the safety feature keep the microwave from acutally turning truly "ON".

You can get the latch itself from either partstore .com or repairclinic .com

Since it's less than one year old, it should be fully covered under warranty. I'd suggest contacting the manufacturer to get it fixed free.

Or you can return it for replacement.

I would not suggest trying to fix this yourself since it's under warranty.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

But essentially you unplug the power, remove the microwave from the wall mount and remove the outer wrapper / cover.

Discharge the high voltage capacitor and then it should be pretty straightforward, but please do read and heed the safety warnings.

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