Bosch Dishwasher Troubleshooting

Welcome to the Bosch dishwasher troubleshooting page. Bosch are a major player in the appliance industry and enjoy a considerable share in the dishwasher market. They are generally very reliable however unfortunately things can sometimes go wrong and you will need to troubleshoot and repair your Bosch dishwasher.

The good news is that since Bosch Dishwashers are so popular, support, spare parts and repair are widely available. Dishwashers are actually fairly simple appliances so many problems you can encounter are often fairly simple repairs.

Check out our page on general dishwasher troubleshooting page for some  advice about some of the more typical dishwasher problems you might encounter. For specific advice about Bosch Dishwasher troubleshooting carry on reading  for advice on where to get started in repairing the problem.

Running a Test Cycle

Bosch dishwashers have a test cycle which can be run as a troubleshooting measure. The method to run this test cycle is similar across the Bosch dishwasher range so if your dishwasher features seems different from those described below then try experimenting, as the process is fairly straight forward and will be very similar. Bosch dishwasher model numbers are usually found around the top or lip of the door.

One of the most common differences between dishwasher models is simply the names of the buttons. For example in the first example below, POWER SCRUB PLUS and REGULAR WASH may be called WASH and ECO depending on your dishwasher model and the country you are in. The other key difference is whether your dishwasher has a display panel (which can display error codes) or not (in which case a program light will illuminate to tell you the fault.

To run the test cycle hold down the POWER SCRUB PLUS and REGULAR WASH buttons. Whilst held down press the ON/OFF button. The lights above them should flash. Now you can check the status of each dishwasher program by pressing its button. Now you can run the full test cycle = Press the POWER SCRUB PLUS and REGULAR WASH buttons again. The dishwasher will start up and when the cycle has ended one, if you have no display panel on your dishwasher model the indicator lights will illuminate if a malfunction was detected as follows -

CLEAN – A temperature sensor fault. If this is the case then the test cycle will be very short as the dishwasher will terminate the test once it’s been detected.

RINSE/DRY – A water sensor/filling fault. If this is the problem then the test cycle will not complete as the dishwasher cannot detect the right level of water, the dishwasher will just keep filling and draining again.

WASH – A heating fault. Check your heating element.

If you do have a display panel on your Bosch dishwasher then after the cycle is complete an error code will be shown if a fault has been detected. The error codes are as follows -

0 – No errors have been detected.
1 – A water sensor/filling fault.
2 – A heating fault.
4 – A water filling fault. This can also appear as F on the display during a normal cycle.
8 – A temperature sensor fault.

When troubleshooting your Bosch dishwasher, running the above test cycle is a good start in diagnosing the problem and should give you an idea of where the problem lies with your Bosch dishwasher and what fixes and repair are in order. Our general troubleshooting page will give you some ideas on other things to check on your dishwasher. Good luck!