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Let's see what have we found to be the culprit:

(1) no heat lube in the well
(2) accuracy of the thermometer
(3) thermal stacking
(4) accuracy of the aquatsat
(5) location location location


  • rob_23
    rob_23 Member Posts: 8

    How do I determine what is wrong with the relay if the high temp is set at 180, but the boiler is going off at 220? Could this high temp have any effect on the expansion tank? It is a new temp gauge.
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