Kitchenaid Microwave went blank

Question edited for clarity

The glass, inner door,and outer door can be purchased spearately or they sell the complete door.

https://www.kitchenaidparts.com/Shop-For-Parts/a6b121d653453-x646f6f72/Door-Model-KHMS155LSS2-Kitchenaid-Microwave-Parts

However;
For more information on replacing this part, please call 866-698-2538 for assistance in scheduling a service appointment.

This place says the complete door is obsolete.

https://www.partselect.ca/Models/KHMS155LSS2/Parts/?pSearchTerm=door&start=1

It is probably time to replace it

https://www.google.com/search?q=KHMS155LSS-2+microwave+door
..

The keypad has a shorted membrane and must be replaced to fix the problem.

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

I had the same problem with the same model of KitchenAid Microwave. KitchenAid customer service will act like they never heard of the problem, although if you google it, you will find that this is a very common problem. Ask to be transferred to the safety department. After more than 6 months of complaining and several repair attempts (they replaced control panel and switches), KitchenAid finally gave me a full refund. This is a serious safety defect for which they have no fix. The product needs to be recalled, and I am willing to testify that KitchenAid was criminally negligent when this product finally causes a house fire and possibly serious injury or death.

the gril at the top (above the door) usually comes off with a couple of screws or just pulls off .. on some you have to take the cabinet apart ..... inside you might find a flat filter put in at a slant .. its often a grease and smell filter that contains activated charcoal .. when it gets clogged then it can rattle around as air tries to get around it .. you can replace it or just leave it out ..

F2 on a KitchenAid mike usually means a Keypad short. Beware if it is a KHMS155LSS, it can self start on its own with a KeyPad short. A real stunning defect.

Possibly a keypad short or motherboard fault if it is a KitchenAid microwave. Beware if you have a KHMS155LSS model, a Keypad short can and will cause the microwave oven to start on its own. A real stunning defect.

check the fuse inside the unit, open the cover and locate the fuse, it is usually inline with the power cord. and the HV line.

The issue is probably your exhaust fan on your microwave comes on automatically when it detects a certain temperature. Mine does this as well but will turn off automatically after temperature goes down.

part number 8184264 should do the trick.