The macerator pump works fine but the motor wont switch off.Any ideas?

Mark, January 2008

Most lightly you need a new diaphragm or micro switch fitted a standard cherr micro switch from RS would work or buy them from Saniflo, the membrane deforms and looks like a cauliflower or goes crispy, If you pull the motor assembly from the case and press the membrane if you can hear it clicking then you may get away with a membrane.

Muncher, April 2021

my saniflo plus leaks thru the top lid when flushed, what is wrong

bob, March 2010

the on/off switch works by a large diaphram pushing onto a micro switch (water one side and the micro swirtch in a sealed cavity the other side). there may be dirt under the diaphram (its very close to the bottom), or the diaphram has crud built up on it making it stiff and holding it up. remove the whole unit and strip it. the hardest bit is getting it out. a jet wash does a good job of cleaning the inside once it is out and the top is off. as can be imagined its not a pleasant job, but a heck of a lot cheaper than buying a new one

steve w, February 2010

when it is in use sound like rattling noise

bharat chauhan, September 2009

Non return valve could be stuck open or the switch could be stuck on
www.city-handyman.co.uk

steved, June 2008

sounds like the none return valve on the out let pipe could be stuck open. this would mean that any pumped waste can flow back into unit giving it the impretion that it needs to operate .

alan, February 2008