Bosch Dishwasher Error Codes

E12: Limescale build up

An E12 error code indicates a build up of limescale in the heat pump. Please purchase the Bosch descaler to remove hard water deposits and limescale buildup

E14: Flow meter failure

An E14 error code indicates a flow meter failure or an issue with water flowing into the dishwasher or the filling system.

E15: Water in the base trough

An E15 error code indicates that the safety switch has detected water in the base of the dishwasher. Your leakage protection system has activated.

E16 & E17: Water filling the system

An E16 or E17 error code indicates an issue with water flowing into the dishwasher or the filling system. The water may not be able to enter the dishwasher.

E18: Water flow into the dishwasher

An E18 error code indicates there is an issue with water flow into the dishwasher. The cause of the E18 error code happens when the water level is too low, or water is not being pumped correctly.

E22: Filter is blocked

An E22 error code indicates that the dishwasher filter is blocked. The filter is the area where food particles get caught and it needs to be cleaned regularly. Remove the filter to make sure it is not clogged.

E23: Issue with drain pump

An E23 error code indicates there is an issue with the drain pump. This happens when the drain pump is blocked, clogged, or faulty.

E24: Dishwasher not draining

It means that the dishwasher is not draining properly due to the drain filter being blocked.

here could be several reasons for it. To find out the cause, please check the following things for an E24 error code:

1. Check the inlet hose and ensure it's not kinked or damaged.

2. The pump cover may be loose. The pump cover is located at the bottom of the dishwasher underneath the filter. Remove the filter to reveal the pump cover and ensure that it’s not loose. If you have trouble locating it, review your owner’s manual.

3. If the dishwasher drain hose is connected to a garbage disposal's dishwasher drain connection, ensure that the plug is removed from the disposer’s dishwasher drain connection.

E25: Drain pump blocked, drain issue, filter clogged or pump impeller is jammed

An E25 error code indicates the drain pump is blocked or the drain pump cover is loose or missing

1. Check to see if the drain pump cover is loose. The pump cover is located at the bottom of the dishwasher underneath the filter. Remove the filter to reveal the pump cover and ensure that it’s not loose. If you have trouble locating it, review your owner’s manual. 

2. The drain pump may be blocked. The pump is located at the bottom of the dishwasher underneath the filter. First, remove the filter completely to reveal the drain pump cover. Next, pry off the pump cover with a spoon until it clicks. Grip the cover and pull upward until you feel resistance. Then pull forward to remove the cover completely. Check the pump and remove any debris and standing water with a sponge. Use caution as some debris may be sharp. If needed, review your owner's manual for more specific instructions.