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Bosch Dishwasher lights flashing or blinking

If your Bosch dishwasher lights are flashing or blinking, the machine is usually telling you a key part is not working the way it should. On this Bosch dishwasher lights flashing page, the most likely cause is a failed heating element, followed by the heating element assembly, since the control panel may start blinking if the water never reaches the proper temperature. Next most common are a bad water inlet valve that is not letting in enough water and a faulty door latch or microswitch that keeps the dishwasher from confirming the door is securely closed. If those parts check out, the problem may be in the control board or main control board, especially if the dishwasher flashing error lights appear without another obvious symptom. Testing parts like the heating element, water inlet valve solenoids, and door latch switch with a multimeter can help narrow it down fast. If your Bosch dishwasher lights blinking issue is tied to a failed component, enter your model number on RepairClinic.com to find the exact replacement part that fits your specific dishwasher.

01 - Bosch Dishwasher Heating Element

The heating element heats up the water to operating temperature. If the water doesn’t reach the proper temperature after a set amount of time, a light on the control panel might start flashing. To determine if the heating element has burned out, use a multimeter to test it for continuity. If the heating element does not have continuity, replace it.
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Top Solution

02 - Bosch Dishwasher Heating Element Assembly

The heating element assembly heats up the water to operating temperature. If the water doesn’t reach the correct temperature after a set amount of time, a light on the control panel might start flashing. To determine if the heating element assembly has burned out, use a multimeter to test the heating element for continuity.
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Top Solution

03 - Bosch Dishwasher Water Inlet Valve

If the dishwasher lights are flashing or blinking, the cause could be a faulty water inlet valve. You can use a multimeter to test the valve's solenoids for electrical continuity to help determine if the component is functioning properly or not.
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Highly Likely

04 - Bosch Dishwasher Door Latch

A dishwasher's lights flashing or blinking could indicate a problem with a micro switch inside the door latch assembly. To determine if the micro switch is at fault, use a multimeter to test the switch for continuity. If the switch does not have continuity, replace it or the entire latch assembly.
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Highly Likely

05 - Bosch Dishwasher Control Board

The control board provides power to nearly every component of the dishwasher. It's possible that the board has shorted and is causing the lights to flash or blink unexpectedly. Check the owner’s manual for possible fault codes as one of the components may have failed. If the control board is not sending power to one of the components, it's likely the control board is at fault and will need to be replaced.
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Common

06 - Bosch Dishwasher Main Control Board

The main control board provides power to nearly every component of the dishwasher. It's possible that the board has shorted and is causing the lights to flash or blink. Check the owner’s manual for possible fault codes as one of the components may have failed. If the control board is not sending power to one of the components, it's likely the main control board is at fault and will need to be replaced.
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Common

Frequently Asked Questions

Why are the lights flashing on my Bosch dishwasher?
Can a bad heating element cause a Bosch dishwasher to blink and not start properly?
How do I know if the water inlet valve is causing my Bosch dishwasher lights to blink?
Could a Bosch dishwasher door latch problem make the control panel lights flash?
How do I find the right Bosch dishwasher part for flashing lights at RepairClinic.com?

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