Yes, do a Google search for the fault and the make/model and you will find plenty of advice.
I did one search you could have done, for "e4 baumatic dishwasher" and got this:
http://www.ukwhitegoods.co.uk/forumsphpbb3/baumatic-bdw13-error-code-t12773.html
A word of caution - it is worth reading all the way to the end as some of the "cures" are useless. Read down and you should understand why.
acp, June 2017
