Alpha 240E keeps tripping out on DHW?

[Taipan]

Hello.
My Alpha 240E occasionally fails to fire up on DHW and the red temperature light comes on and we have to press the white reset button. Its become an almost daily occurrence now but when it fires up as normal the DHW and CH are both fine. Any ideas on what could be the cause of this?
Many thanks.

 

[Agile]

I assume its an ignition lockout?

That will require a gas registered engineer to diagnose.

When was it last propery serviced?

Tony