Bath or shower does not empty,the saniplus hums then stops.but after 30 mins or so suddenly starts working.
Had the same humming noise from my Saniflow unit with no discharge, stripped it out and removed the top cover, inside found the the top of the motor had a screwdriver slot, so I turned the motor/impeller around and found with a little effort I could rotate it, the more I turned the easier it became, until it was spinning freely, so I reconnected, pushed the reset button and low and behold, the unit worked.
I concluded that due to lack of cleaning with a descaler, it had furred up.
So before you call out the service man give the unit a good clean out.
Allan Read More At : SaniPlus-Round SaniPlus Macerator Toilet with Round Bowl...