- Joined
- 6 Mar 2009
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- 150
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Having hot water problems with a 2-year-old Worcester-Bosch combi boiler - the hot water starts fine, but almost always goes cold after a minute or two. Sometimes it will run hot again of its own accord after a minute or so, usually you have to turn off and on.
It's a bigger problem when running the bath or shower than the basin tap.
The system had a cleaner put through it when the boiler went in and has a MagnaClean fitted, so I'm hoping it won't be a blocked heat exchanger.
Whilst the water pressure is good (about 3 bar), the flow is poor (about 5 l/m) - is that likely to be low enough to cause a problem for the boiler?
It's a bigger problem when running the bath or shower than the basin tap.
The system had a cleaner put through it when the boiler went in and has a MagnaClean fitted, so I'm hoping it won't be a blocked heat exchanger.
Whilst the water pressure is good (about 3 bar), the flow is poor (about 5 l/m) - is that likely to be low enough to cause a problem for the boiler?