J
James Jay Ellis
Hi all I went away on holiday and turned off my boiler on the unit itself I returned to it and the system fired fine and then lasts for around 30 seconds then shuts down then reignites and lasts for around 30 seconds again. This will then repeat about 4 to 5 times until it will then shut off completely and flash red with just F no fault code we immersion heater running and the PCB has demand set for hw however we have no heating at all any ideas finding a plumber to come out is proving impossible and they are telling me different things when I ask. The pressure also is reading 1.7 bar and the temperature gauge is all over the place and has no consistency
