Boiler stays on ?

I have a ideal logic esp1 35 and just purchased the wired thermostat all wired correctly and connected but the boiler stays on? Does anyone know the menu config code for this boiler?


  • How have you wired it? Relay or digital?
  • Thanks for your help it’s wired as Digital? That’s the way I was told ?
  • The code for Opentherm is d01. Make sure the + and - terminals on the thermostat are wired into the Opentherm terminals on the boiler. You might also need to connect the Opentherm harness.
  • I have a number of rooms with trvs which work well but the boiler stays on at night when there is no call from TADO to do so