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R7284U

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Windy
Windy Member Posts: 1
in Thermostats and Controls
heater comes on-then stops-goes to a countdown-then show firing and then standby. Why is it turning off when heat is called for by thermostat? Doees not happen all the time
STEVEusaPA

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  • Jamie Hall
    Jamie Hall Member Posts: 27,178
    Steam? Hot water? Forced air? Oil? Gas? Could be any one of a number of things...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • HVACNUT
    HVACNUT Member Posts: 7,369
    What burner?
    Is there a delayed oil valve?
    Count down? Does it say "Recycle"?
    Is T T configured ON?
    Is T T jumped?

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