Bosch ishwasher not stopping

Bosch dishwasher SHE44C06UC/22 does not stop and LCD shows 1.
Running test mode discloses E1.
What does this mean in terms of failed part? heating or control panel or???:frowning:

Hi.
According to the manual the code 1 means bad aqua sensor

				[AP2802364](http://www.appliancepartspros.com/bosch-aqua-sensor-assembly-165279-ap2802364.html)

Post the results.

Simon.