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    acegutz1's Avatar
    acegutz1 Posts: 6, Reputation: 1
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    #1

    Nov 1, 2008, 12:59 PM
    Boiler or Thermostat?
    Hello. I've got a gas Pennco boiler 16 series for radiator heat in my home. The thermostat will not get above 60 degrees even with the thermostat calling for heat for a setting high of 64 Degrees. The boiler cuts off at 60. Where should I be trouble shooting? The boiler or the thermostat? Thank you.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 1, 2008, 01:01 PM
    If you jump the thermostat out of the circuit the temperature should go up since the thermostat as a control will be removed temporarly from the system. If the temperature does not go up then it will be a boiler problem.
    acegutz1's Avatar
    acegutz1 Posts: 6, Reputation: 1
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    #3

    Nov 1, 2008, 01:17 PM
    Quote Originally Posted by hvac1000 View Post
    If you jump the thermostat out of the circuit the temperature should go up since the thermostat as a control will be removed temporarly from the system. If the temperature does not go up then it will be a boiler problem.
    Thank you for a quick response. How do I jump the thermostat? Thanks again.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #4

    Nov 1, 2008, 01:33 PM
    Usually the R and W wires that go to the thermostat.
    acegutz1's Avatar
    acegutz1 Posts: 6, Reputation: 1
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    #5

    Nov 1, 2008, 02:09 PM
    Quote Originally Posted by hvac1000 View Post
    usually the R and W wires that go to the thermostat.
    I have 4 wires. B & W go to thermostat and the R & G are taped off not connected. Which wires should I use to Jump?
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #6

    Nov 1, 2008, 04:25 PM

    The B and W,, just tie them together,, if boiler heats the house without cutting off,you will know the boiler is OK and the tstat needs replacing
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