Vaillant Ecotec 831 plus

[Northamptonredboy1]

Hi all . I`m getting the F61 & F62 fault codes on the above boiler ( about 12 years old, serviced regularly ) Should I get the PCB changed or the gas valve, or both ? Thanks for any help or advice.

 

[Deleted member 267285]

You should engage in a gas safe registered engineer to diagnose this correctly for you, replace any parts required and carry out critical safety checks afterwards.

 

[ianmcd]

If the temp on the display is jumping around when not locked ot , it will be the PCB

 

[Agile]

This is very common on that model at 12 years.

It can be either or both parts!

More often the PCB.

It may be a good candidate for a fixed price repair in view of the difficulty in diagnosing the fault. Most seem to resort to p[arts changing!

But they can be very occasional. A client has had only three lockouts in three months. But they often get more frequent but more often take months or years to get impossible to live with.

 

[Northamptonredboy1]

Thanks ianmcd and Chris_W

 

[Northamptonredboy1]

Thanks Agile. Whats your opinion on second hand refurbished parts ( with a 12 month guarantee ) ? They are much cheaper than new ones.

 

[Agile]

I would generally avoid them.

I would also advise that a gas engineer is engaged to fit any new PCB as it has gas settings which need to be correctly set.

 

[Northamptonredboy1]

Thanks again.