Hi
Today I got up and my heating would not work on my CH system but I have hot water. My radiator valves are open but when I press i on the boiler it displays s0 which is no hot water demand. I have drained the system refilled and bled all radiators bu no joy. Sometimes error message s7 is coming up which is pump over run, any ideas ? I have tested terminal 4 on board and it has voltage, I have also tried resetting boiler through d97 but no joy, also I have tried d70 and selecting heating only demand but still no hot radiators. Anyone help me with what it could be ?
Today I got up and my heating would not work on my CH system but I have hot water. My radiator valves are open but when I press i on the boiler it displays s0 which is no hot water demand. I have drained the system refilled and bled all radiators bu no joy. Sometimes error message s7 is coming up which is pump over run, any ideas ? I have tested terminal 4 on board and it has voltage, I have also tried resetting boiler through d97 but no joy, also I have tried d70 and selecting heating only demand but still no hot radiators. Anyone help me with what it could be ?