The display of error code E02 on the Bosch dishwasher indicates that the machine is having a problem with heating the water.
If you are having this error on your dishwasher, you are on the right page!
Causes of Error Code E02
In Bosch dishwashers, the temperature of the water in the tank is maintained by the heating element and its wiring. So, if anything goes wrong with the heating element, this error code E02 appears on its screen.
Moreover, a malfunctioning thermostat or main unit can also lead to this error.
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Fixing Error Code E02
Like most of the error codes, it is possible that the code E02 appears as a result of a glitch on your Bosch dishwasher.
So, the first recommended thing to do is to restart the system and run it after 10-15 minutes. If this does not work, proceed by following these steps:
Step 1: Check the wiring and the connections inside the machine.
Step 2: Check the wires with a multimeter. If you find any defective ones, fix them.
Step 3: After this, examine the main unit, its wires, and connections. Also, check the heating element and the thermostat.