worcester bosch 24i junior greenstar flashing red light


Postby ali_boiler » Wed Dec 28, 2016 12:24 pm

When the boiler is cold, the heating and hot water comes on fine.

When the heating system gets hot and boiler automatically turns off. When you try to put the hot water on, all lights (reset light (red), Eco light (green) and Service light (red)) flash and boiler attempts to come on, even the flame lights attempt to come on but then the boiler comes off. After 5-10 seconds it then attempts to come on again and all the lights flash again. And this process keep occurring.

I have changed the fan, MCB (Mother Board), gas valve, but these have not changed anything.

Could it potentially be the wiring coming from MCB (Mother Board)?

What do you think the problem could be? Any suggestions will be valued.

Thanks
ali_boiler
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