Glow-worm 18hxi boiler showing error code 26 see full detail?
I have had problems recently with error code F5, seem to have this sorted now but am now getting Error Code F26, reset and cleared the fault but is there a faulty component, both codes refer to the Thermistors and Temperatures ?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.