Drawer missing ive changed the board the switch but still get the same message so im not sure what else to suggest

If ther is two pens that's men's it's wired not a microswich
So look where the pens attached to the machine then Mack sure the wires are attached bouth from inside the machine

To prevent the washer from operating while the detergent drawer is open your machine has what is called a "reed switch". The reed switch is controlled by this magnet, so that when the drawer is closed the magnet causes the reed switch to close and this tells the control board to go ahead and run the machine.

Your error message is telling you the reed switch it not working, so they want you to check the magnet to make sure it is still in place and is working.

To prevent the washer from operating while the detergent drawer is open your machine has what is called a "reed switch". The reed switch is controlled by this magnet, so that when the drawer is closed the magnet causes the reed switch to close and this tells the control board to go ahead and run the machine.

Your error message is telling you the reed switch it not working, so they want you to check the magnet to make sure it is still in place and is working.

It is likely the power filter board at the bottom of the bottom drawer is faulty which is causing lack of power to top drawer and F1 alarm on bottom drawer.
Filter board

Dredge drawer is the big box on the bottom right. That is where the grounds are dumped. Remove the drip tray and pull the drawer out about half way. Push it back in with 1 finger on the right side of the drawer. That should clear the message. If it comes back on when you put in the drip tray, there is a section of the drip tray that can be removed to stop that. On the right side of the drip tray is a notch. Inside that notch is a thin piece of plastic. It curls up on the right side. Cut out the piece that curls up (just the piece that curls, about an inch). When you push in the drip tray that curl lifts the dredge drawer and knocks it out of position.
There is a micro switch whit an arm the hangs down in the slot on the side of the machine. Make sure that you have the arm for the micro switch.

which machine do you have. The drawer is not hitting the micro-switch try puttin a piece or 2 of tape on the tab on the side of the dredge drawer

F1 indicates flood fault. There is no reset, machine thinks it has flooded. If machine was running OK until electrical storm, then it could have shorted the mains filter control board (DD603 models-this mains filter board also acts as flood switch), although this is unlikely to have shorted. More common is dishwasher has had a leak causing F1 fault, or corrosion on mains filter board . Open bottom drawer and shine torch underneath to see if there is any water in the base of the cabinet- if yes, machine has leaked and activated flood switch. If not, flood switch board may be faulty.
Unfortunately, access to this flood switch control is permitted only by removal of the bottom drawer- recommend calling technician unless very keen!! If keen, read on!!
-To remove drawer- there is a tag at the bottom front on each side of drawer when you open it -just below the round plastic plug. You need to push this tag in and slide backwards on each side, then drawer will lift out-Careful as hoses and wiring still attached, but long enough to allow access. Mains filter control board is located under plastic cover at left rear- press tag on plastic cover and slide to the right- you will now see small electronic board. This is the mains filter board that doubles as the flood switch. It is held in place by 1 screw- you need to remove wires from board before removing it). Check circuit board for corrosion or evidence of short circuit- if so, replace circuit board.
Good luck, but advise seeking professional help unless you very confident!!

F1 indicates flood switch has been activated. I wouldn't advise you attempt repair on these drawers- they really require an expert to disassemble (I worked for F+P for 10 years!!). Depending on which model you have (DD603 or DD601v2), repair varies. 603 has a small circuit board that acts as flood switch- located in base beneath drawer- requires drawer to be removed for access. 601v2 model has polystyrene float that acts as flood switch-leaks usually caused by split lid seal(tricky to access- drawer has to be removed) In either case, a leak has occurred and activated flood switch. These drawers are very sensitive to detergents (don't use tablets!!), and the way they are loaded.
Would suggest you get service technician to remedy F1 fault

There is no 'sensor' for this, an internal counter resets when you remove the drawer with the machine switched on and the "Dreg drawer Full" message displayed.
Make sure the machine displays this message "DREG DRAWER FULL" Do NOT turn off the machine, Pull out the drawer that the used grinds are dumped in(you have to remove the drip tray 1st) Check display - it should read "DREG DRAWER MISSING" If the display message is correct, wait 10 seconds then replace the drewer.
Message should be cleared.
If the "dreg drawer missing" does not display, you do have a bad sensor and machine needs to be serviced.

Hold down the "Stop/Reset" button for 5 seconds and it dismissed the first message, but then there was another for a different cartridge, etc. Eventually I got it to work.