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- 28 Nov 2019
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Hello. I hope you're all keeping safe and well.
My boiler (greenstar 30i) is no longer heating the taps (upstairs nor downstairs) at a consistent level. It's very hot for a second then cold and sometimes lukewarm. More often than not, it's cold.
It is displaying error 276 flow sensor fault but I don't know what I can fix myself. If I understand the screen correctly, it knows when the tap is on or off but it always thinks that the water is above 90 degrees so stops heating it.
It is 15 months old and was installed by bosch-apporved plumbers. I did not get it serviced at 12 months. I have had the radiator setting on "off" for about 2 months while I was doing renovations. Tap temperature was always fine until I started to replace the radiators (air in the radiator pipes and low pressure for a few weeks), where the tap temps were erratic and the boiler was very noisy. I've replaced the radiators now, increased pressure, and bled them so there is no more air in the CH system but the hot water temp is a lot more erratic than ever before.
Radiators are fine and hot when needed.
I've turned eco mode to "preheat" but that doesn't fix.
I've even kept the hot tap on for 15 minutes and more often than not it's cold.
I've turned the tap on when the radiators are on but that doesn't help either.
What do I need to do please?
Thanks for any advice.
My boiler (greenstar 30i) is no longer heating the taps (upstairs nor downstairs) at a consistent level. It's very hot for a second then cold and sometimes lukewarm. More often than not, it's cold.
It is displaying error 276 flow sensor fault but I don't know what I can fix myself. If I understand the screen correctly, it knows when the tap is on or off but it always thinks that the water is above 90 degrees so stops heating it.
It is 15 months old and was installed by bosch-apporved plumbers. I did not get it serviced at 12 months. I have had the radiator setting on "off" for about 2 months while I was doing renovations. Tap temperature was always fine until I started to replace the radiators (air in the radiator pipes and low pressure for a few weeks), where the tap temps were erratic and the boiler was very noisy. I've replaced the radiators now, increased pressure, and bled them so there is no more air in the CH system but the hot water temp is a lot more erratic than ever before.
Radiators are fine and hot when needed.
I've turned eco mode to "preheat" but that doesn't fix.
I've even kept the hot tap on for 15 minutes and more often than not it's cold.
I've turned the tap on when the radiators are on but that doesn't help either.
What do I need to do please?
Thanks for any advice.
