Am hoping one of you experts (or DIY'ers!) can (please!) help with following: -
Installed Grohtherm Wireless pumped shower 18 months ago next to gravity fed HWS cylinder heated by off-peak immersion. All working fine until last week.
Returned from week away to find HWS immersion thermometer safety cut-out had tripped which meant that tank was now luke warm. Reset this (cause was wife hanging towels off HWS tank which covered the immersion ) and HWS reheated fine.
However, after HWS tank was back to normal temperature shower struggled to reach the standard 38C - I measured temp of water from HWS and it was 52C so ok and well within unit limits.
I than ran Inlet Valve cleaning procedure and after this the shower worked fine again - for 3 days. This morning had same problem - not reaching temperature.
If anyone has seen this before and knows of likely problem/fix that would be appreciated!
I haven't yet tried uncoupling the unit and cleaning inbound valves/filters (partly because there is no way of isolating inbound hot water as gate valve fitted to hot water feed is broken ) so I need to wait for weekend when I have some time. I did wonder if cartridge could be failing - but that wouldn't explain why it has worked for 3 days again?
Pressure/flow etc from shower is fine no obvious change from before.
I can get shower a bit warmer by increasing dial to say 42C but even when doing that the output water temperature is around 30C mark.
Thanks for your help.
Installed Grohtherm Wireless pumped shower 18 months ago next to gravity fed HWS cylinder heated by off-peak immersion. All working fine until last week.
Returned from week away to find HWS immersion thermometer safety cut-out had tripped which meant that tank was now luke warm. Reset this (cause was wife hanging towels off HWS tank which covered the immersion ) and HWS reheated fine.
However, after HWS tank was back to normal temperature shower struggled to reach the standard 38C - I measured temp of water from HWS and it was 52C so ok and well within unit limits.
I than ran Inlet Valve cleaning procedure and after this the shower worked fine again - for 3 days. This morning had same problem - not reaching temperature.
If anyone has seen this before and knows of likely problem/fix that would be appreciated!
I haven't yet tried uncoupling the unit and cleaning inbound valves/filters (partly because there is no way of isolating inbound hot water as gate valve fitted to hot water feed is broken ) so I need to wait for weekend when I have some time. I did wonder if cartridge could be failing - but that wouldn't explain why it has worked for 3 days again?
Pressure/flow etc from shower is fine no obvious change from before.
I can get shower a bit warmer by increasing dial to say 42C but even when doing that the output water temperature is around 30C mark.
Thanks for your help.