problem only occurs on central heating, replaced spark probes already as slightly bent, correct voltage from board to spark generator 190v Dc, signal from flame proving probe fine. heating fires up initialy but once at temperature does not cut back in, will do if you run dhw flame then stays on. overheat stat also ok(ie no resistance when cold
any sugestions greatly received as to how to test components,thinking either gas valve or board but would like to know for sure.
Thanks
any sugestions greatly received as to how to test components,thinking either gas valve or board but would like to know for sure.
Thanks