Hi

My boiler has started displaying the F31 error code after being in operation for about 20 minutes. The system pressure is 1.25 Bar and I have reset the boiler (power) to no avail.

Anyone have any suggestions?

Many Thanks

Chris, October 2011

Hi Chris,

I have this problem on my boiler. Couple of questions:

Is this something that anyone can fix?

Can you please post a link to the sensors that are required?

I would like to try and fix this problem myself as it seems like a relatively easy one in comparison to somethings that can go wrong on a boiler.

Any help or advice would be much appreciated!

Cheers,

Scott.

Scott, October 2016

Fixed! In case anyone else needs this I will post the fix. It was a fault with the Flow Sensors in the unit there are 2 of them one on the unit and clip onto the copper pipes they are connected by 2 removable wires.

Bought 2 of them off ebay and swapped them over - now working ok again.

Chris, November 2011

Over time the system resets itself and then comes back on. Pressing reset and ++ doesnt seem to do anything instantly.

I think I have a an air lock in the CH system somewhere, going to try and flush and refill the system I think.

Chris, October 2011

Try pressing the reset button once and the + button for CH twice,

Hego1, October 2011