C
cronshd
Hi - can you help?
We have 2 Crosswater Logic 1500 showers, fed by an Ideal+ 40 Combi boiler.
These were newly installed 2 years ago - all fine.
We had mains leak a few months ago - sometime after this was repaired, the en suite shower would start off hot then go lukewarm even when set to 100% hot.
Bought a new cartridge, filter, valve etc from Crosswater and this was fitted last Friday - and all seemed ok. Today though - it is back to lukewarm.
The original cartridge has been sent to Crosswater for their engineers to check if there was a fault (I suspect not).
Now the other shower has also gone lukewarm as well.
When I originally raised this problem Crosswater, they came back with this:
There are a few potential causes for the issue which you're experiencing, these are as follows:
Firstly, there might be some debris caught inside the thermostatic cartridge, which is causing the mixing element to not work correctly. Removing the cartridge and soaking it in a 50/50 mixture of water and vinegar for an hour will usually resolve. If a replacement cartridge is required, then it is part code SC50-T20 and priced at £56.99 + VAT and carriage.
Secondly, if one of the non-return valves isn't opening correctly, it can affect the temperature regulation and even cause the valve to shut down. When the valve is first switched on, the burst of pressure might be enough to open the hot non-return valve fully, but it might start closing a little afterwards - which will restrict the amount of hot water going in to the valve. Removing the non-return valves and cleaning off any debris or residue should allow them to function correctly.
Thirdly, the valves require reasonable balanced hot and cold water pressures in order to regulate temperature properly. If the cold water pressure from the mains supply is higher than the hot water output of the boiler, then the cold water will overpower the hot water. Though this cause is probably less likely than the above two, as it should affect your other Crosswater valve too.
So, as we have done 1 & 2 above for the en suite shower, I can only guess it is the hot-cold water balance.
How does my plumber fix this? Is it a straightforward job?
Any ideas/comments/thoughts greatly appreciated!
Thanks, D
We have 2 Crosswater Logic 1500 showers, fed by an Ideal+ 40 Combi boiler.
These were newly installed 2 years ago - all fine.
We had mains leak a few months ago - sometime after this was repaired, the en suite shower would start off hot then go lukewarm even when set to 100% hot.
Bought a new cartridge, filter, valve etc from Crosswater and this was fitted last Friday - and all seemed ok. Today though - it is back to lukewarm.
The original cartridge has been sent to Crosswater for their engineers to check if there was a fault (I suspect not).
Now the other shower has also gone lukewarm as well.
When I originally raised this problem Crosswater, they came back with this:
There are a few potential causes for the issue which you're experiencing, these are as follows:
Firstly, there might be some debris caught inside the thermostatic cartridge, which is causing the mixing element to not work correctly. Removing the cartridge and soaking it in a 50/50 mixture of water and vinegar for an hour will usually resolve. If a replacement cartridge is required, then it is part code SC50-T20 and priced at £56.99 + VAT and carriage.
Secondly, if one of the non-return valves isn't opening correctly, it can affect the temperature regulation and even cause the valve to shut down. When the valve is first switched on, the burst of pressure might be enough to open the hot non-return valve fully, but it might start closing a little afterwards - which will restrict the amount of hot water going in to the valve. Removing the non-return valves and cleaning off any debris or residue should allow them to function correctly.
Thirdly, the valves require reasonable balanced hot and cold water pressures in order to regulate temperature properly. If the cold water pressure from the mains supply is higher than the hot water output of the boiler, then the cold water will overpower the hot water. Though this cause is probably less likely than the above two, as it should affect your other Crosswater valve too.
So, as we have done 1 & 2 above for the en suite shower, I can only guess it is the hot-cold water balance.
How does my plumber fix this? Is it a straightforward job?
Any ideas/comments/thoughts greatly appreciated!
Thanks, D
