Yes done that i suspect the recon board is faulty sending it back and have ordered another one.
Thank you.
Yes the radiators are getting hot am changing the pcb suspect autofroststat.
Had a problem during the winter with the flow turbine sensor freezing and water leak.
Replaced the flow sensor the boiler now starts to fire up with out dhw or ch being called for.
After it lights the reset flashes fast. i replaced the pcb with a recondition one but the fault is the same.
I...