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View Full Version : How to tell if the boiler transformer is bad


seussisloose
Dec 13, 2009, 12:13 PM
Pilot light lit and replaced thermostat. Burner not firing on american standard boiler. How do I tell if the transformer is shot?

hvac1000
Dec 13, 2009, 12:49 PM
Usually the secondary should measure 24 volts or right around there.