Bosch Dishwasher Error Codes: What Do They Mean?

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Bosch dishwashers have an internal diagnostic system that automatically identifies problems with components within your dishwasher so you are made aware that they need to be fixed. In this guide, we are going to inform you what each error code means and how you can remove it.

All major Bosch dishwasher models are covered by this guide, including:

GM926710

SHE44C05UC/20

SHE44C06UC/17

SHE46C02UC/17

SHE46C05UC/17

SHE46C05UC/22

SHE46C06UC/17

SHE55M05UC/50

SHE55M05UC/52

SHE55M05UC/53

SHE56C02UC/17

SHE56C02UC/18

SHE56C05UC/17

SHE56C06UC/17

SHE56C07UC/17

SHI4302

SHI4306

SHI6802

SHI6805

SHI6806

Bosch dishwasher error code E1 or E2

What it means:

Both error codes mean you have an issue with the temperature sensor or thermistor. 

How to fix:

Start by resetting your dishwasher by turning it off and then back on after five seconds. If that doesn’t work, you will need to check the sensor with a multimeter to check if it has continuity. If it fails the test, the sensor will need to be replaced.

Bosch dishwasher error code E3

What it means:

This error code indicates your dishwasher is unable to fill with enough water.

How to fix:

Start by turning the water supply off and then the power. You can then check that the water hose isn’t blocked or being obstructed by first checking for any bends or cracks in the hose, and then disconnecting it to make sure it isn’t blocked. If blocked, unblock it and then reconnect it. If the hose is fine, make sure the water inlet valve is working correctly. If not, replace it.

Bosch dishwasher error code E4

What it means:

This error code means there’s a problem with the water flow sensor in your Bosch dishwasher.

How to fix:

Start by resetting your dishwasher by turning it off and then back on after five seconds. If that doesn’t work, the water flow sensor will need to be tested, and if faulty, replaced.

Bosch dishwasher error code E5

What it means:

This error code means your Bosch dishwasher is filling up with too much water. The most common reason this occurs is when the float switch in your dishwasher becomes faulty.

How to fix:

Start by resetting your dishwasher by turning it off and then back on after five seconds. If that doesn’t work, the float switch will need to be tested for continuity and if defective, replaced.

Bosch dishwasher error code E6

What it means:

This error code means the aqua sensor in your dishwasher is faulty.

How to fix:

Start by resetting your dishwasher by turning it off and then back on after five seconds. If the code is still showing, locate the aqua sensor and test it with a multimeter for continuity. If defective, the aqua sensor will need to be replaced.

Bosch dishwasher error code E9

What it means:

If your Bosch dishwasher is displaying an E9 error code, there is a problem with your heating element. If it is defective it might need to be replaced.

How to fix:

Start by resetting your dishwasher by turning it off and then back on after five seconds. If that doesn’t work, locate the heating element, and test it with a multimeter for continuity. If it fails the test, replace it. If the heating element passes the test but is cracked or damaged in any way, you will also need to replace it.

Bosch dishwasher error code E15

What it means:

If your Bosch dishwasher is displaying the E15 error code it means your appliance is leaking water which has then caused the flood sensor to activate. To get your dishwasher working again, you will have to fix the underlying cause of the leak. 

How to fix:

If you cannot see any water on your floor, the error code might be showing by mistake. Reset your dishwasher by turning it off and then back on after five seconds. If this doesn’t work or if you can see water on the floor, you will need to find the source of the leak and fix it. The most likely sources of the leak are a defective hose, or a cracked inlet valve or connection.

Bosch dishwasher error code E22

What it means:

The E22 error code indicates the filter is blocked which has then caused excess water to build up in the sump. 

How to fix:

Start by resetting your dishwasher by turning it off and then back on after five seconds. If that doesn’t work, locate the filter and remove it from your dishwasher (it can usually be found at the bottom of the appliance). Give the filter a good clean before placing it back into your dishwasher. Turn your appliance off and on and check if the code has gone.

Bosch dishwasher error code E24 or E25

What it means:

Both of these error codes indicate a problem with your dishwasher drainage system.

How to fix:

Start by resetting your dishwasher by turning it off and then back on after five seconds. If that doesn’t work, turn your dishwasher on to the drainage part of a cycle and listen to what sound it is making when trying to drain. If you can hear a humming noise, this indicates a faulty drain pump impeller so it will need to be tested and replaced if faulty. If the dishwasher isn’t trying to drain at all, this indicates the drain pump isn’t working at all so it will need to be tested and replaced if faulty.

Bosch dishwasher error code H24

What it means:

This error code stands for “24-hour delay”. 

How to fix:

Start by resetting your dishwasher by turning it off and then back on after three minutes. Once you’ve turned it back on, press the start button for 10 seconds to further reset your dishwasher’s computer. After 10 seconds the error code should disappear and you can start using your appliance again.

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