I Have a KitchenAid coffee machine model 5KES0503. There is more water running into the drip tray from the capsule area than out through the spout into the cup. Tried descaling no improvement

give me the model ples

Try running apple cider vinegar through it. A few times. This is a mild acid that will get rid of mineral deposits from water. I do this on my coffee maker. Run straight water a few times after to get rid of the vinegar taste.

is it everytime little coffee,or sometimes?
If is everytime -you have to descale the machine,if just sometimes you have to cllean flowmeter,wich is on the back of machine.

Please read this
https://www.thedebuguy.com/blog/debugging-nespresso-machine

There are two nozzles in front of the machine attached together, the nose of the bigger one on the top slides into the smaller one on the bottom. When it makes coffee, the spout outside the machine becomes lower so coffee can come out. When it is done making coffee, the spout goes up so water/coffee drips in the drip tray. If one of the nozzles breaks, the spout on the smaller one will not go down and the inside end is lower and coffee goes inside the drip tray. It has nothing to do with cleaning.

First, I'm NOT a Briel technician, But if you still have pressure from the removal of the portafilter (or capsule) then the exit or pour spout is clogged. You can soak a standard portafilter in warm water over nite and wash it clean in the morning. Really bad? then soak in urn cleaner and flush thoroughly prior to use. For capsule machines follow the MFR's instructions to properly flush the machine. You may also try to "fool" the machine into making a 'no coffee' shot by reusing old capsules over and over again to try and flush out old coffee from the spout. Otherwise the unit may need servicing to remove the clog as most of these capsule machines do not have serviceable parts. Contact your vendor or MFR directly for service or replacement.
*warning! Try not to stick a pin, nail, or paper clip into spout(s) as this may damage valve or offset the dual pour spout. Most of these machines have double spouts and can be easily pushed out of alignment.
* Final; I've noted that your probably using a portafilter type machine. If you have water or steam dripping from head then there is a leak in your head valve or commonly called the 'Group Valve'. Fortunately this is a serviceable part and can be replaced by your vendor.
PS. Have you tried 'Back Flushing? Use a "BLANK" portafilter basket (the one with no holes) or a back flush rubber stopper (from Cimbali). Add a 1/4 teaspoon of urn cleaner of flush cleaner to portafilter and lock onto group. Run shot till it stops (excess pressure and dose will by-pass the group valve. This will flush old coffee and crud out the by-pass pipe and into drain tray. If nothing happens and the group hums for longer than 20 seconds then your probably got a clogged valve and back flush pipe. All will need disassembly, cleaning and/or replacement. Best to call your Vendor for service.
*Be sure to run the group several times and wash the portafiler to get rid of the urn cleaner.
*Tip; It's a good idea to back flush every hour with with plain water from the shot to just get rid of the coffee grounds stuck to the group shower head and leftover coffee in the group valve. Does not hurt the machine and keeps everything working smoothly.

Aloha, youtube; ukeboy57

run vineger through it or CLR before they plug up completly. good luck

Try this, if the machine has a pregrind door(usually on the top front) then use the button to tell it you are using pre grind coffee, if water comes out the spout this way then the grind on the grinder is too fine, if it goes out the drain then the coffee passage is blocked, remove the brew unit and check/clear tubes, also clean the spouts on the door of the unit.

This is most likely due to a bad o'ring. The bar you speak of...Does the unit have a small spout pointing upward from the area?...with a groove? Is the o'ring in that groove damaged or missing? When the grounds are compressed in the piston, the brew unit lowers down onto this spout and seals on it. The high pressure water then is injected upward inot the brew unit. When this seal fails the water simply leaks into the tray when there are grounds providing backpressure. When rinsing and no backpressure some of the water may be getting through. Make sure you lube up any seals with a food grade lube. Olive oil will work in a pinch.

Mike

let it run without coffe tablets, if no water comes out probably the conducts are obstructed, may be calcium in the pipes...do water come out somewere else?...