E:09 Error on Bosch Dishwasher.
E09 is an overheating problem.
Turn off the appliance, wait 10 minutes and plug back in.
In most cases this solves the problem.
If it persists, the control board electronics needs a checkup.
Bosch Dishwasher Troubleshooting ' Dr. Dishwasher
www.drdishwasher.com/troubleshooting/manufacturer/bosch/
Your Bosch dishwasher can run a test cycle which will quickly go through each ... You can find a list of Bosch dishwasher error codes and their definitions here.
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Our Bosch stopped heating the water. Inside the door, there is an electrical box with several relays. Turns out the OEM Relay sucks and overheats, melting the solder off the relay at the circuit board, causing it to fail.
I bought an upgraded (maybe higher amperage) relay that was for and replaced the original two years ago..maybe more...and it's never failed again.
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