Laars Endurance boiler LO error code

Hi Guys,

My three years old Laars Endurance is displaying an LO error code. According to the user guide, it means that the boiler is in a lockout state. In past, I have faced this issue several times. I have tried powering the boiler off & on & when I switch on the boiler; it goes to the Lockout state immediately. Someone, please help me

Thanks a lot


Hi Evan, you are right LO means Lockout. There are various reasons behind the Lockout state of the boiler. When it comes up instantly after hitting the reset button then, I would like to say that it is more than likely to be due to the wiring or control problem. I would advise contacting the Laars boiler engineer if your problem persists.