Boiler won't fire up

[Davidhandyman]

Hello everyone,

Re-Baxi 80e

I have just changed seals etc in my diverter valve, now it won't fire up.
Not sure if any water got near pcb.
Green power light on, and neon flame flashing.
How do I test are know if it's pcb?
Also cannot hear pump is this because not fired up?

Thanks,

David.

 

[twgas]

Do you get either of the demand lights or fault lights when you turn on HW or CH?

 

[Davidhandyman]

Hi Micky,

Green power light on, and red flashing neon failure light. That's it.

David.

 

[picasso]

Sorry if I am stating the obvious but have you reset the boiler ?

 

[Davidhandyman]

Hi yes I have power down completely, and reset a few times.

On couple of occasion it has tried to fire up but comes to nothing.

Any suggestion!!

David.

 

[Davidhandyman]

Hi mick,

I noticed when I turn to reset the red light still flashes.

David.

 

[gas112]

have you pulled the ignition wire out whilst working on diverter , will look like its still in place but its not pushed home fully both

 

[Davidhandyman]

Hi mick,

Not that I know of, I'll check it now.

David.

 

[Davidhandyman]

Hi Micky,

Checked all visible wiring all seems ok.

David.

 

[picasso]

Could you have inadvertantly turned the gas off and not put it back on again ?

 

[Davidhandyman]

Hi Micky,

Nope all pipes etc that I isolated, I turned back on.

David.

 

[Davidhandyman]

Hi Micky,

Even thou I have nothing but green light, would anything else work.
Example would hear pump?

David.

 

[Agile]

When there is a demand for heat the pump should start.

It does sound like water on the PCB.

This model is very badly designed and its very easy to get water into electrical parts.

A professional knows all about this and takes the trouble to cover it all up!

Hairdryer time!

Tony Glazier

 

[Davidhandyman]

Hi Tony,

That's what I've tried hair dryer maybe not long enough.

Failing second attempt looks like new pcb.

Thanks,

David.

 

[gigz]

Don't go buying a new pcb just yet. Isolate the boiler and one at a time take the connections off the pcb (take a photo first in case you get lost) flick any water out and dry connections with soft cloth/hairdryer. Give that a go first (pcb aint cheap and if boiler plugs are still wet it may blow the new one) make sure everythings bone dry and try again. Patience is the name of the game.