baxi 105e

[desrob]

every time you call for heat or dhw the boiler trips the electric,the hydraulic diff switch does not seem to be working,and would a jammed pump cause the boiler to trip electrics in this manner

 

[Millsy 82]

What I do is disconnect everything from the board and turn it on then start to connect the plugs in the sequence that the boiler runs that will narrow it done.

Usually either Pump motorised heads on diverters or fan

 

[desrob]

i took the centre screw out of pump and water squirted under pressure from centre,from this would ou