Premature dripping The coffee begins to drip before I shut the lid. Is something wrong?

The Bunn has a little stopper that closes the water drain port in the reservoir while the lid is open. You can see a little white plastic pin protruding up out of the grate with the lid open. When you close the lid, it pushes on that pin which causes the stopper to lift off the drain port, allowing the water in the reservoir to enter the heating tank.

If water is entering the coffee basket BEFORE the lid is closed, then something is wrong with that little stopper. It may have a chunk of debris on it preventing it from sealing, or it may be deteriorated, torn, disconnected, etc.

Only way to know is to remove the the screws in the grate and pull the top off exposing the reservoir, and the stopper assembly. The little plastic flapper disc should be seated in the reservoir drain port. It should be relatively flat (not wrinkled) and covering the drain port completely. Test it by pouring some water into the reservoir. If it drains out without you activating the stopper, then a repair is needed.

Move the lever up and down and check its operation. The arm must move freely and close when released. There should be no dirt or debris on the sealing surface of the flapper nor on the sealing surface of the drain port. Gently clean with vinegar as necessary. If the seal is damaged, then a replacement is required.

Ensure the lid is on the pot as it pushes up a plunger to allow the coffee to drip when it it properly seated under the filter assembly.

Lid not engaged correctly, pull down firmly.

The caraffe lid must be on the Coffee maker while making coffee.

The lid pushes a opens the hut-of valve in the filter.
If the lid is not on the caraffe, the valve will prevent coffee from dripping out of the filter.

This is to prevent coffee leaking on the lower carafe heating element when you remove the caraffe to quickly pour some coffee. the water accumulates while you do this, so if the machine is still brewing, you should put the carafe with lid back in the cofee maker, to release the accumulated liquid in the filter.

This is a design flaw and can be corrected by enlarging the lid spout. First remove the plastic lid. Then use a fine grinder or sandpaper to remove approximately 1/8 inch of plastic from the lid spout. Follow the exact same contour of the oval spout. However, do not take off so much material that you disturb the small plastic tabs that hold the lid to the pot. Finish by slightly rounding the edges where the material was removed with fine sandpaper. No leaks - no drips.

My Krups was not working after I accidentally forgot to place the black plastic lid on the coffee carafe BEFORE starting to brew a new batch of coffee. The coffee will not drip into the carafe without the lid
in place. Because the lid is hidden when placed in the coffee maker, it's easy to forget! The coffee all backed up in the filter area and overflowed. The display got wet. Not good.....

If your buttons and or display is not working ( mine got wet with coffee) simply flip the coffee maker over. Unscrew the bottom. expose the display circuit board carefully, DRY it with a HAIR DRYER and put the unit back together! Presto! Mine is working again.

If you need a new circuit board, you can get one for $35 from Appliances.com I found. They also have the Duo filter and extra parts cheaper than the Krups website.

You may not be able to put it back on, in case you can't it is no bigee, all this does is prevent coffee from running everywhere if you remove the pot before the maker is finished making coffee.

Wait for it to be done and you will just have just a drip or two.

The Bunn coffee machine has an internal tank used for holding approx three potfulls of water at just below brewing temperature. When you add water for a potful, the thermostat senses cold water and starts the brew heater. The water level inside the tank comes up and goes through the sprayhead. This "surge" of water, that you call drips is normal. The hot water stratifies to the top of the tank, just like an electric water tank in a house. The internal pot heater kicks in and boils the water already in the tank, raising the water level in the siphon pipe to the sprayhead until the reservoir under the add water opening is empty.

Is the burner hot when this occurs?

Is the burner hot while your pouring water in?