Heatline Compact boiler error code F27

Hi All,

I have bought and installed a Heatline compact boiler seven years ago. It worked well until last night but now it is showing an F27 error code, which is quite irritating. I have restarted the boiler many times but all in vain. Someone, please help me.

Thanks a lot


Hi James,

According to the Heatline compact boiler’s user, manual F27 error code directs a “Flame Detection Fault”. It is possible that your boiler needs a service & the probe has to be cleaned or even replaced. Well, primarily check the boiler’s pilot assembly either it is clean or not & flowing freely from a gas controller. If yes, you have to replace a flame detection lead and probe.