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HTP 155 wall hung

hello All, im trying to raise the temperature on my boiler its a HTP 155 combi
when i go into the 600 programme mode it says the temp is set at 180f but the temp coming out when being called is 135f, how can i raise this? do i need to by pass the outside temp sensor??


  • Ironman
    Ironman Member Posts: 7,379
    180* is the high limit and that's the correct setting.

    The actual supply water temp is controlled by the OutDoor Reset function. That may need adjusting, but NOT disabling.

    Is the boiler keeping your house warm enough?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.