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Ncb 240 turning on randomly

pedro268
Member Posts: 1
in Gas Heating
I have a ncb 240 I have changed the thermostat twice. It will work normal for a few days and then it will turn on and call for heat. The thermostat is in the off position. I double checked the wiring. Nothing is touching or broken.
0
Comments
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You'll need to find out what command or device is asking it to run. A keep warm aquastat somehere?Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0
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