I’ve got a strange fault on this machine. It fills fine on “Quick Wash” main wash and 1st & 2nd rinse then fails to fill on final hot rinse with wash pump “hunting” as though it’s full. On “Normal” prog. it does pre-wash then same problem. All regular things have checked ok, no blockages,pressure system clear, harness ok. Customer keeps it clean and tidy.
Machine has had mod. done by Bosch some time ago and it’s worked fine since then.
Any clues please.