On 02/06/18 13:41, Theo wrote:
Andy Burns wrote:
John Smith wrote:

I know there's a valve in the box in the inlet hose - maybe
a new hose or valve?

New valve sounds favourite

Yep - if it's tripping the RCD it suggests there's a leakage current from
live to earth. That would point the finger towards electrical components in
contact with water.

Theo

On my now scrapped Bosch it was (twice) the heater element burning out


--
"When a true genius appears in the world, you may know him by this sign,
that the dunces are all in confederacy against him."

Jonathan Swift.