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1-An object is blocking the blades
The unit has been running for too long
and the (self re-setting) thermal cut out
has engaged.
Call authorized repair shop or The unit will reset itself.
2-The electrical power supply is not active
The motor or the pressure chamber is
defective
Probably something solid stuck in the blades. If you have children then it is possible that something that is not cuttable has been flushed and is between the blades.
certainly indicates that the unit is not holding water (hence not starting on every flush). as you are seeing water in the shower - this is obviously where it is going. It may be that the internal flap (non return valve) is stuck open or damaged. If damaged you can put a new non return valve in your 40mm pipe run where the shower pipe enters the saniflo - about a tenner from most suppliers.
Hi Neil, The pump is activated by a pressure switch inside the unit and would not normally make any noise, so probably can rule that one out!
From the manual on the saniflo it would suggest either a foreign object in the unit, a defective motor or control unit. It may be that you are unlucky and have a loose macerator blade that needs to be tightened (and loctite applied).
I would double check that the clunking is definitely coming from inside the unit and not a pipe or something else moving (the water pushing the 90 degree rubber discharge tends to move and can create movement around it). When you are sure, it will be the not so nice job of opening up the unit:
FIRST .. RUN THROUGH CLEAN WATER (will make sense later!)
- *** DISCONNECT FROM THE MAINS SUPPLY *** - Empty the Cistern, bowl and disconnect the inlet pipes to the WC - remove the WC and cistern - being very careful, disconnect the outlet (some have non return valves, some don't, so you may get some sludge coming back down the pipe). Hopefully none if you pushed enough clean water through initially
get unit out and wear rubber gloves to protect your hands from getting germs in cuts etc. Normally need a star driver and flat blade screwdriver
If it is the macerator blade it should be clear that it is loose and could be tightened up. It could be play in the motor which unfortunately would mean a new unit - to test, gently pull up on macerator blade and feel for movement vertically.
also check for any foreign objects etc.
While it is out you may as well clean it out - I normally do this outside by putting warm bleached water into the unit for around 30mins, swishing it about and then emptying down a drain (cover up the mains cables in a plastic food bag first!). I also sometimes use a hose pipe to really get into all of the nooks.
Good luck with the fix, if this helps pls leave feedback, if not let me know and I'll try and help some more
If the motor is growling or humming loudly and the blades are not turning the motor IS the issue. For some reason, either electrical or mechanical, it won't turn. You will probably need to take it to an electric motor repair shop in your area for inspection and a quote on repairs vs. replacement.
sounds like an obstructed unit - you would need to remove the impeller cover at the base to check the pump - i'm assuming youve already checked the blade unit at the top (be careful here - i use a screwdriver - not my finger) could be that a simple cleanup and acid descale would be all thats needed. try this first then start looking deeper.Humming indicates motor is ok - but dont let it run continuosly - you dont want to burn out a good motor.
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