Hi Phil my fault appears tobe identical to yours. When i turn the water on ,it was found tobe leaking out of a small internal pipe which had split.I replaced it and swiched on to find loss of power and it making a pulsating sound.Who s the best supplier of parts . Kind Reards Baz
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix general d.i.y.