Hi,
My aunt asked me to have a look at her Geberit cistern which recently has suddenly stopped flushing on the short flush button. Long flush works normally as far as I can tell.
This is the flush mechanism (the label suggests PN 7074-98) , please excuse the mess:
Took the whole thing apart. Nothing obviously broken or worn, except that there are two nibs on the top of that blue weight that do not appear to have anything to engage into, which suggests a part has become detached and gone down the flush pipe. Perhaps a spring has come loose? Although it seems unlikely a spring would be involved and there are no corrosion marks that suggest any metals were present.
I'm assuming the short flush blue rod should lift the flush washer to initiate the flush and that the blue weight should then somehow bear onto the main float to interrupt the flush at a certain point whereas, in full flush mode, the white rod is lifted, the blue weight is not lifted and hence the flush washer is floated for a longer period.
The blue actuating rod is lifting the blue weight but is not lifting the white rod or flush washer at all and I cannot really understand how the mechanism is supposed to work.
The obvious answer is to replace the mechanism. Since I don't have access to parts, that means calling another plumber, based locally, who has access to parts. The frustrating thing is that I lose the opportunity to compare the new and old mechanisms to work out what the difference between the two is. To me, who likes to be be able to identify and understand faults, even when the answer ends up being to replace the whole assembly, this is a source of frustration.
Anyone come across this before, and is it a common fault?
My aunt asked me to have a look at her Geberit cistern which recently has suddenly stopped flushing on the short flush button. Long flush works normally as far as I can tell.
This is the flush mechanism (the label suggests PN 7074-98) , please excuse the mess:
Took the whole thing apart. Nothing obviously broken or worn, except that there are two nibs on the top of that blue weight that do not appear to have anything to engage into, which suggests a part has become detached and gone down the flush pipe. Perhaps a spring has come loose? Although it seems unlikely a spring would be involved and there are no corrosion marks that suggest any metals were present.
I'm assuming the short flush blue rod should lift the flush washer to initiate the flush and that the blue weight should then somehow bear onto the main float to interrupt the flush at a certain point whereas, in full flush mode, the white rod is lifted, the blue weight is not lifted and hence the flush washer is floated for a longer period.
The blue actuating rod is lifting the blue weight but is not lifting the white rod or flush washer at all and I cannot really understand how the mechanism is supposed to work.
The obvious answer is to replace the mechanism. Since I don't have access to parts, that means calling another plumber, based locally, who has access to parts. The frustrating thing is that I lose the opportunity to compare the new and old mechanisms to work out what the difference between the two is. To me, who likes to be be able to identify and understand faults, even when the answer ends up being to replace the whole assembly, this is a source of frustration.
Anyone come across this before, and is it a common fault?