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in the troubleshooting guide it shows "_ _ 0", but the '0' could be any number. Your trouble is with one of the two sensors. Recheck the thermister's and look for an open circuit. Both are rated at 100K ohms @ 77*f, I don't have a chart for lower temp's but the reading would be lower for a colder sensor. Let me know what you find.
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  • Joe Grosso
    Joe Grosso Member Posts: 307
    Having a problem

    I have installed many of the 2400 erie boiler boss controls but this is the frist 1200 I am doing.Problem is that the unit will not read any temp # and just keeps reading _ _ 5.I rechecked all connections and trouble shooting guide and do not know what is wrong before I bring it back.Any feedback would be appreciated.
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