My Potterton Powermax HE 155x combination boiler keeps displaying 'A01' on the digital display screen and fails to produce any hot water.
I can press a reset button to get the boiler going again but more often than not it will switch back to the 'A01' mode with no hot water being produced.
Does anyone know what the problem is?
Any help much appreciated
Thanks
I can press a reset button to get the boiler going again but more often than not it will switch back to the 'A01' mode with no hot water being produced.
Does anyone know what the problem is?
Any help much appreciated
Thanks