British Gas 330 Boiler F5 error code

[mumstheword]

Error code F5 on a British Gas boiler model 330

Hi, I have read the answers on this site about other peoples problem with this error code but, I can not see any red reset button top left inside the boiler casing. The previous post were back in 2009 so I wonder if the layout of the boiler has changed since then. Does anyone one know if this is the case and where the reset button has gone?

 

[Dan Robinson]

This is an overheat error code.

Turn the power switch off on the front of the boiler, wait 5 seconds then turn it back on.

if it doesn't fix you need to find the cause of the overheat.

 

[mumstheword]

Thanks for that.

The reason was a drain down resulting in a lot of air in the system. I eventually tracked down the red reset button, it is hidden between the two push on connectors on the flow heat sensor. All now working ok apart from a lot of bubbles still in the pipes but hopefully the air separator will do its stuff.