Hi,
I had a new vaillant combi boiler installed a year and a half go, powerflushed etc. Water temp was fine then could have a hot shower. Recently in the last couple months the hot water in the shower has become lukewarm. In kitchen tap the temp fluctuates from 39-45 degrees Celsius. This is with the boiler set at 65 Celsius.
The boiler is under warranty and the engineer came down and replaced the heat exchanger. First he isolated the hot water but water was still coming out the hot water kitchen tap. He said its an issue with cross flow where cold water is making its way in to the hot water pipe and get a plumber to take a look. The old heat exchanger was fine no gunk or anything on inside.
The shower was also replaced the same time as boiler during an extension.
Please can someone advise how I can isolate which tap is causing the issue? All are mixers in the house. I'm just afraid that floorboards will need lifting up etc don't want to go through all that pallava.
Thanks
I had a new vaillant combi boiler installed a year and a half go, powerflushed etc. Water temp was fine then could have a hot shower. Recently in the last couple months the hot water in the shower has become lukewarm. In kitchen tap the temp fluctuates from 39-45 degrees Celsius. This is with the boiler set at 65 Celsius.
The boiler is under warranty and the engineer came down and replaced the heat exchanger. First he isolated the hot water but water was still coming out the hot water kitchen tap. He said its an issue with cross flow where cold water is making its way in to the hot water pipe and get a plumber to take a look. The old heat exchanger was fine no gunk or anything on inside.
The shower was also replaced the same time as boiler during an extension.
Please can someone advise how I can isolate which tap is causing the issue? All are mixers in the house. I'm just afraid that floorboards will need lifting up etc don't want to go through all that pallava.
Thanks