Fault: The boiler lights for central heating and then it will shutdown sometimes in 10 seconds, sometimes a couple of minutes maybe longer. Then it tries to relight immediately but sparks repeatedly at the relay on the sequencer board, eventually lighting, to repeat the above process with demand for central heating. However it works perfectly with demand for hot water, but will occasionally trip out the thermal overload after extended demand for hot water.
this fault has been going on for several months, no parts have been replaced recently however I have carried out all electrical tests in the Installation and Servicing Instructions and they are all correct. I have not checked the gas pressure.
this fault has been going on for several months, no parts have been replaced recently however I have carried out all electrical tests in the Installation and Servicing Instructions and they are all correct. I have not checked the gas pressure.
