Tag - Bosch dishwasher repair

**NOTICE**
Due the danger and complexity of electronic equipment repair, the following technical tip is intended for professional reference only. Please refer to manufacturer’s recommendations as Encompass does not guarantee the accuracy, reliability or safety of this information. 

Bosch dishwashers feature an internal diagnostic system that automatically identifies problems with its various components. This guide reviews the error codes you may encounter and how to resolve for these Bosch models:

Bosch dishwasher error code E1 or E2

What it means:

Both error codes signify an issue with the temperature sensor or thermistor.

How to fix:

Start by resetting dishwasher: turn it off for five seconds and turn on again. If this doesn’t work, check sensor with multimeter to ensure continuity. If it fails, sensor must be replaced.

Bosch dishwasher error code E3

What it means:

Dishwasher unable to fill with enough water.

How to fix:

Start by turning off water supply and then power. Look for any bends or cracks in water hose to see if it’s blocked or obstructed. Disconnect hose to make sure it’s not blocked. If it is, unblock and then reconnect hose. If hose working correctly, check water inlet valve and replace if necessary.

Bosch dishwasher error code E4

What it means:

Problem with water flow sensor.

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:

Dishwasher filling up with too much water. Most common reason is faulty float switch.

How to fix:

Reset dishwasher by turning it off for five seconds and then back on. If this doesn’t work, test float switch for continuity and replace if not working.

Bosch dishwasher error code E6

What it means:

Faulty aqua sensor.

How to fix:

Reset dishwasher by turning it off for five seconds and then back on. If error code still showing, test aqua sensor for continuity. Replace aqua sensor if defective.

Bosch dishwasher error code E9

What it means:

Heating element problem.

How to fix:

Reset dishwasher by turning it off for five seconds and then back on. If this doesn’t work, test heating element for continuity. Replace if not working, and also if it’s cracked or damaged in any way.

Bosch dishwasher error code E15

What it means:

Water leak causing flood sensor to activate.

How to fix:

If no water seen on floor, error code may be mistake. Reset dishwasher by turning it off for five seconds and then back on. If this doesn’t work or water is on floor, find source of  leak, which most likely caused by defective hose or cracked inlet valve or connection.

Bosch dishwasher error code E22

What it means:

Blocked filter causing excess water to build up in sump.

How to fix:

Reset dishwasher by turning it off for five seconds and then back on. If that doesn’t work, remove filter from dishwasher (usually found at bottom of dishwasher). Thoroughly clean filter before returning to unit. Turn appliance off and then on and check code again.

Bosch dishwasher error code E24 or E25

What it means:

Both codes indicate problem with dishwasher drainage system.

How to fix:

Reset dishwasher by turning it off for five seconds and then back on. If that doesn’t work, turn dishwasher on to drainage cycle and listen to sounds made. Humming noise indicates faulty drain pump impeller. Test the part and replace if faulty. If dishwasher not trying to drain at all, drain pump needs to be tested and replaced if defective.

Bosch dishwasher error code H24

What it means:

24-hour delay.

How to fix:

Reset dishwasher by turning it off for three minutes and then back on. Then, press start button for 10 seconds to further reset dishwasher computer. After 10 seconds, error code should disappear and dishwasher ready again.

Special thanks to Fred’s Appliance Academy for this helpful tip.