sparodic filling: check the float is not catching on something. or it's a inlet valve fault.
I have one which has a float [like upside down cup] that rises up a ratchet type shaft and sometimes stickes closed position so preventing filling I just slide it up and down that seems to work.
BB
January 2010
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
