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Postman1
Hi,can anyone offer advice? I hava warmflow u120 combi oil boiler which is 2 yrs old and recently broke down. Engineer told me that water pressure switch had gone and was causing it to switch off. A replacement has been fitted and heating is working but after a while the water heater is causing system to click on and off loudly with pressure and ignition lights flashing. I'm being told that the settings on the switch need modifying and this can only done from opening the top, is this right? This model is supposed to be a front servicing model designed to go under fixed surfaces. Obviously don't want to rip out counter needlessly so does this model have key components that need access from top and does pressure switch issue ring true? Advice welcome?