I have a Miele KF1901SF Fridge-freezer dripping water inside the refrigerator section

The error code you are experiencing on your Miele KFN 12823 SD1 with four beeps and flashing of the super freeze LED, along with the 9 and 5 LEDs on the fridge temperature block, is indicating a problem with the fridge evaporator sensor. This sensor is responsible for monitoring the temperature inside the fridge compartment and is located in the fridge section.
According to the service manual, the evaporator sensor for your model is located inside the fridge compartment, behind the light unit and it can be accessed by removing the light cover. The sensor is connected to the main control board via a cable.
It's important to note that the location of the sensor can vary depending on the specific model. In your case, since the sensor seems not to be behind the light unit, it could be that it is foamed-in.
If you want to replace the sensor, you will need to carefully remove the foam insulation in order to access the sensor. This can be a delicate process and it's important to be careful not to damage the insulation, which can affect the cooling efficiency of the fridge.
It's recommended to have a professional technician to help you with the replacement, as it might involve handling with refrigerant and electrical connections.
It's also important to make sure that you have the correct replacement sensor for your model and to follow the instructions in the service manual to ensure a proper installation.

Red light on for High Freezer Temperature Warning
or freezer not cooling, but fridge is and a lot of noise from compressor.
Also, fridge drain hole blocked, water in bottom of fridge.

This is a common fault in Hotpoint Fridge Freezers and can also happen if the door has been left open or has been a power cut.

1. Turn off fridge freezer, or at least turn down the freezer temp to minimum, though not ideal.
2. Open freezer door and remove all drawers.
3. Remove the back panel on the inside of the freezer. This is held in place with 4 screws, which might be 6mm hex head or star allen head. Pull the panel out.
4. Behind where the panel was, there is a cooling element for cooling, pipes, and below this a temperature sensor. If the fridge freezer is not switched off, then fold together a few layers of tinfoil and wrap around the sensor.
5. Use a hairdryer to slowly melt the ice. Melt it around areas where it appears to be hanging on, such as the corners of the cooling element or bolts, as well as any thin sections below the main block of ice around the cooling element, which will be supporting the main block. Use a plastic ice scraper to remove ice but not near pipes or sensor.
Warning: Be careful using electrics around water & melting ice & drips.
6. Below the cooling element, there is a drip channel & drain hole. If this hole is full of ice, pour a small amound of warm water down, leave for 10 seconds and pour a bit more until clear.
In the fridge, clear the drain hole in the same way.
Warning: Do not pour a lot of water down, as this water drains onto a tray above the hot compressor at the rear of the fridge freezer to be evaporated by the heat of the compressor and the tray will only hold a small amount.
7. When all ice is removed, dry all moisture. Put the shelves back. Close door. Turn on fridge freezer. Turn up the freezer temperature to your normal setting. Turn on fast freeze if available. After 1 hour, check with a thermometer. It should be cold enough after 1 or 2 hours.

Red light on for High Freezer Temperature Warning
or freezer not cooling, but fridge is and a lot of noise from compressor.
Also, fridge drain hole blocked, water in bottom of fridge.

This is a common fault in Hotpoint Fridge Freezers and can also happen if the door has been left open or has been a power cut.

1. Turn off fridge freezer, or at least turn down the freezer temp to minimum, though not ideal.
2. Open freezer door and remove all drawers.
3. Remove the back panel on the inside of the freezer. This is held in place with 4 screws, which might be 6mm hex head or star allen head. Pull the panel out.
4. Behind where the panel was, there is a cooling element for cooling, pipes, and below this a temperature sensor. If the fridge freezer is not switched off, then fold together a few layers of tinfoil and wrap around the sensor.
5. Use a hairdryer to slowly melt the ice. Melt it around areas where it appears to be hanging on, such as the corners of the cooling element or bolts, as well as any thin sections below the main block of ice around the cooling element, which will be supporting the main block. Use a plastic ice scraper to remove ice but not near pipes or sensor.
Warning: Be careful using electrics around water & melting ice & drips.
6. Below the cooling element, there is a drip channel & drain hole. If this hole is full of ice, pour a small amound of warm water down, leave for 10 seconds and pour a bit more until clear.
In the fridge, clear the drain hole in the same way.
Warning: Do not pour a lot of water down, as this water drains onto a tray above the hot compressor at the rear of the fridge freezer to be evaporated by the heat of the compressor and the tray will only hold a small amount.
7. When all ice is removed, dry all moisture. Put the shelves back. Close door. Turn on fridge freezer. Turn up the freezer temperature to your normal setting. Turn on fast freeze if available. After 1 hour, check with a thermometer. It should be cold enough after 1 or 2 hours.

Remove the housing that covers the evaporator inside the fresh food section and remove any ice or sludge that may be blocking the defrost drain below that evaporator. Insure no ice or water is touching the defrost sensor for that section. This is a common problem that Samsung has with it's dual evaporator refrigerators. With that drain blocked the problem will only become worse.Thanks Sea Breeze

Hi, what is the name and model of the freezer?

Yes! look under you fridge for the consendate drain hose *(usually dangling right over the catch tray) and using a long piece of slightly heavy guage wire snake up the drain hose and see if it's blocked.

If it isn't blocked you might have a crack somewhere in the fridges interior near the fridge/freezer interface. That might be a bit harder to spot since it would most likely be under cover.

Good luck and be careful.

water inside, too much condensation from humid air entering fridge from bad seals. replace the seals. could also be that the condensate drain is clogged. if it's leaking from the bottom of the fridge, make sure the tubing is still inside the condensate pan underneath the fridge.

hi thanks for the question it looks like you have a drain problem the drain tube goes to the back of the fridge by the compressor it is clogged up clean tube thanks te appliance doc

Possibly something was spilled and it got to the door gasket. Clean the door gasket area with warm soapy water. In the door there is nothing critical to the system operation that should cause the condition you have.

The freezer defrosts every day. the puddle is from that. It is supposed to go into a pan at the bottom and evaporate. You need to look at the pan and determine if it has a hole or the drain hose is leaking somewhere.