(Fixed) Bosch Dishwasher Not Starting Red Light Flashing

Is your Bosch Dishwasher Not Starting Red Light Flashing? This indicates a problem in your dishwasher that is preventing it from starting.

Or it might mean just a little warning like don’t open the door of your dishwasher while it is running.

Either way, it is best to look for problems that might disrupt the usual behavior of your dishwasher.

Quick Info

The most common problem is the door. If the dishwasher’s door isn’t shut completely, the red flashing light indicates this issue and asks for it to be resolved so the dishwasher can continue running properly. If you encounter this blinking light issue a lot, it’s a good idea to do a reset of the dishwasher which might fix all the technical issues.

In this guide, I’ll help you identify the reasons for this red flashing light and what you can do to fix these issues. Let’s get started.

What does the Bosch Dishwasher Red Light Mean?

What does the Bosch Dishwasher Red Light Mean

The red flashing light on the dishwasher is a signal from your dishwasher, telling you that something isn’t right.

It’s trying to inform you that there is an issue that needs solving before your dishwasher can start doing its job.

It may be due to the fact that the door isn’t closed properly or that something inside might be causing a hiccup.

Sometimes, the red light would possibly blink in a certain pattern. That’s like its way of speaking a special language to let you understand what is happening.

In order to fix this, you should use your dishwasher’s user guide. It holds the key to understanding these codes and what they mean.

(Causes and Solutions) Bosch Dishwasher Not Starting Red Light Flashing

Here are two of the main reasons why you might be getting this issue along with their fixes:

1. Improperly Closed Door

Imagine your dishwasher as a vault that needs to be closed tight before it works its magic.

If the door of your dishwasher isn’t closed perfectly, it won’t start and the red light will begin blinking to inform you that something’s not right.

How to Check and Fix

  • Give the door a gentle push to make sure it’s shut completely.
  • Check for anything blocking the door’s path, like dishes sticking out or a misaligned rack.
  • If the door seems okay but still won’t close, look for damaged latches, broken hinges, or springs that might need changing. Adjust or repair them.

Sometimes, it’s not just about the door itself. If the racks are out of place or if there is a broken latch, damaged hinge, or worn-out spring, these can prevent the door from closing properly and trigger the red light.

2. Empty the Dishwasher and Do a Reset

Surprisingly, giving your dishwasher a little break by running it empty can do wonders.

Take out all the dishes and run an empty cycle. Sometimes, this simple reset can clean things up and stop the red light from blinking.

How to do a Reset?

  • To reset your dishwasher, hold down the “Start” button for about 3-5 seconds while making sure the door is closed.
  • You’ll see the timer change to “0:00” indicating it’s resetting. It may even make some draining noises because it resets its system.

Just like a PC desires a reboot when things get a bit sloppy, your dishwasher occasionally desires a reset too.

This reset will reload its settings and clear up any mistakes causing the red light to blink constantly.

What are the Different Red Light Flashing Patterns for Bosch Dishwasher?

Red Light Flashing Patterns In Bosch Dishwasher

These are the patterns of red flashing lights and what they mean:

  • For new users, the blinking red light might not indicate an issue; it’s just the dishwasher doing its thing.
  • The blinking red light during the running of the dishwasher means that you should not open the door mid-cycle.
  • After completion, the red light might turn off, indicating the cycle is complete and safe to open.
  • The red light might blink if the rinse aid cup is empty or its door is open. It reminds you to ensure it’s filled and properly closed.

Frequently Asked Questions (FAQs)

Ensure the door is shut completely and free of obstructions. Empty the dishwasher, perform a reset, and refer to the red light patterns to troubleshoot specific issues like rinse aid cup refill, or mid-cycle door opening.

If the red light continues to flash and the dishwasher doesn’t start, try checking the door closure, performing a reset, and referring to the red light patterns for specific error messages. If the issue persists, seek professional assistance.

Yes, running the dishwasher empty and performing a reset can often help resolve the flashing red light issue. However, if the problem persists, it may indicate a more significant underlying issue that requires professional attention.


You need to understand your Bosch dishwasher’s red light patterns in order to fix the issue. This can be an improperly closed door to the warnings at some stage in a cycle. 

Sometimes, it’s just the dishwasher working, which isn’t such a big concern, especially for new users. Remember, the red light’s behavior holds clues. 

You need to pay attention to these indicators to clear up minor glitches and guarantee your dishwasher runs smoothly.

With this knowledge, you are equipped to decipher the red light’s messages and keep your Bosch dishwasher running without any interruptions.

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