M30100 headache still!! Wiring help needed!

[drewdaniel82]

Further to an earlier post my boiler was leaking so got that fixed turned out to be heat exchanger.

Went turn it back on, totally dead! So it a new pcb and the user control switch and still nothing!

Fuse is in pcb is ok. Checked wiring down to the switch at user controls, blue is live, brown and read are dead. Is this right?

I want to jump the switch to see if it is that but unsure which ones to jump to see if boiler will fire up.

It anyone else any other ideas? Any help appreciated! Cheers folks!!

 

[picasso]

Just looked at the instructions for your boiler (ideal isar he ?) and there shouldent be a blue on the on/off switch unless I got the wrong boiler.

 

[Agile]

Sounds dangerous to me.

Usually blue is reserved for neutral and brown for live!

But who changed the heat exchanger??? And then left without testing the boiler?

Tony

 

[gas_man_gaz]

have ya mixed up the molex plugs whilst replacing the pcb?