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Faltering boiler

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Dslott
Dslott Member Posts: 1
in Radiant Heating
I have an older munchkin boiler that doesn’t want to fire in spring and fall how do I adjust the outdoor temperature sensor. I need to lower it so it fires in warmer weather. In the s3 program mode it’s reading c190,ch23,de120,dh9. Which one of these is for the out door temp?

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  • 109A_5
    109A_5 Member Posts: 2,434
    Maybe


    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
    GGross

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