Vokera Mynute 14e

[scroggybank]

I’ve turned off all radiators to remove a downstairs radiator, so only the water in the pipes has been drained.
I’ve pressurised the system back up and opened up all the radiators.
The Vokera mynute 14e (not a combi) won’t fire up for hot water or heating.
Am I’m missing something ?
Thanx

 

[Hairymelon]

With a big straight bladed screwdriver , loosen the big chrome screw in the centre on the pump to allow air to escape. I suspect air within the boiler is preventing flow and the water flow micro switch
Is not moving

 

[scroggybank]

Thanx, will give that a go.

 

[DP]

Raise the pressure to 2, 2.5 bar even
Try again.
At the back of the pump there is an air vent. Crack the dust cap open and let any air out of the pump if the dust cap is closed tight as often will be on a boiler this age