Potterton Netaheat 60e

Potterton Netaheat 60e

Potterton Netaheat 60e

The boiler fires up but shuts down after 20 mins and stays like that till next cycle.
It is pumped and pump is working. Motherboard is newish.
Radiator water is very hot even though I turned boiler down to min.

I can restart it by turning control panel to constant then push button on boiler.

by retardimus

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