Sanimarin toilet

[Stuart]

I think you’re on the right track regarding it being related to the macerator function.

I posted an installation manual for the Sanimarin toilet in this thread -

Sanimarian toliet

I think saw from a previous post you mentioned you had the 41LKB floor plan which has two toilets, similar to our floor plan. I’m guessing this toilet is the one located up front and should be a macerator style since it’s not located directly over the blank tank. Ours is a Tecma model and has a similar indicator on the flush button panel using green, yellow and red roughly corresponding to less than 1/2, more than 1/2 and then full. On the Tecma model, when the indicator is red (full) it will p…

That might give you a starting point to see about disassembling the macerator and checking for any blockages.

Hope this helps.