Vaillant · Turbomax Plus Boilers
This indicates that the Ecomax Pro 828E boiler's pilot flame has gone out or failed to light, preventing the main burner from igniting.
Click steps to track your progress.
Check your gas supply by ensuring other gas appliances in your home are working.
Ensure the condensate pipe is not frozen if it runs outside. Gently thaw with warm water if needed.
Try restarting the boiler by cycling its power off and on.
If the pilot light still won't stay lit, contact a qualified heating engineer to check the ignition system and gas valve.