A blinking red light on a Bosch dishwasher often indicates an issue with the door latch, water supply, or control board. Start by ensuring the door is securely closed, and the latch clicks into place. Reset the dishwasher and check the water inlet valve for blockages. If the issue persists, inspect the control board or call a technician.
Let’s dive in.
Why is my Bosch dishwasher red light blinking?
The blinking red light on Bosch dishwashers, often called the Info Light, is a feature designed to alert you to potential issues. When functioning correctly, the red light projects onto the floor during a wash cycle, letting you know the machine is running. But, if it starts blinking, it is signalling a problem.
Common causes include:
- Door latch issues – The dishwasher thinks the door isn’t properly closed.
- Water supply problems – The machine may not be receiving enough water.
- Control board errors – Malfunctions in the main control board can trigger this light.
Understanding these potential causes is the first step in troubleshooting effectively.
Step 1: Check the Door Latch
The most common culprit is the door latch. If the dishwasher doesn’t detect that the door is securely closed, it won’t start. Here’s how to inspect and fix it:
- Inspect the Latch for Damage: Open the dishwasher and examine the door latch at the top of the door. Look for visible signs of wear, such as bent metal or cracked plastic. A damaged latch might need replacement.
- Clean the Latch Area: Sometimes, food particles or debris can obstruct the latch mechanism. Use a soft cloth and mild detergent to clean the latch and its surrounding area.
- Test the Door Closure: Close the door firmly. Listen for a clicking sound that confirms the latch is engaging. If it doesn’t click, the latch may be misaligned or broken.
Step 2: Reset the Dishwasher
If the door latch looks fine, but the light is still blinking, try resetting the dishwasher. A reset clears temporary glitches in the system. Here’s how to do it:
- For Newer Models: Press and hold the Start button for 3–5 seconds until the light stops blinking.
- For Older Models: Turn the appliance off using the Power button, then unplug it or flip the circuit breaker for about five minutes before restarting.
I can’t tell you how many times a simple reset has worked wonders for my Bosch dishwasher!
Step 3: Inspect the Water Supply
A faulty water inlet valve or a blocked water line could also trigger the blinking light. Bosch dishwashers are sensitive to water flow issues, so this step is crucial.
- Check the Water Line: Ensure the valve supplying water to the dishwasher is fully open. A partially closed valve can restrict water flow, causing the machine to malfunction.
- Inspect for Kinks or Blockages: Examine the water hose for any kinks or obstructions. If necessary, detach the hose and flush it out with water.
- Test the Inlet Valve: Use a multimeter to test the valve for continuity. If it’s not functioning properly, replacing it is the only solution.
Step 4: Examine the Control Board
The control board is the brain of your dishwasher, managing all its functions. If it’s faulty, the dishwasher might misinterpret signals, resulting in a blinking light.
- Check for Error Codes: Refer to your Bosch dishwasher manual to identify any error codes displayed on the control panel.
- Inspect for Burn Marks: Open the dishwasher and visually inspect the control board. Burn marks or loose connections are signs of a problem.
- Replace if Necessary: If the control board is damaged, you’ll need a replacement. This is a more advanced repair, so consider professional help if you’re not comfortable.
Step 5: Address Other Potential Issues
If the problem persists, other components could be to blame:
- Heating Element: The heating element warms the water to the correct temperature. Use a multimeter to test it for continuity. A broken heating element needs replacement.
- Drain Pump: If the dishwasher can’t drain properly, the light might blink. Check the pump for blockages or test it for electrical continuity.
- Child Lock Feature: Some Bosch models include a child lock that can accidentally be engaged, causing the dishwasher to appear unresponsive. Deactivate it by holding the Child Lock button for a few seconds until the light turns off.
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Preventative Maintenance for Your Bosch Dishwasher
Preventative maintenance can save you from dealing with the blinking red light again. Here are some simple tips:
- Regular Cleaning: Wipe down the door seals, clean the filter, and rinse the spray arms monthly.
- Proper Loading: Avoid overloading and ensure nothing blocks the door or spray arms.
- Check the Water Supply: Inspect the supply hose for kinks or leaks.
- Use the Right Detergent: Stick to dishwasher-specific detergents to avoid residue build-up.
- Run Maintenance Cycles: Once a month, run an empty cycle with a dishwasher cleaner to keep the interior fresh and functional.
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Final Thoughts:
Fixing your Bosch dishwasher’s blinking red light doesn’t have to be a daunting task. With a little patience, the right tools, and some DIY spirit, you can save time and money while keeping your appliance running smoothly.
When I fixed my dishwasher, I felt empowered. I saved a repair bill and gained confidence in solving household problems. If you’re dealing with a similar issue, give these steps a try, and share your experience in the comments below.
