I have a new house with a heat pump and an ecobee 3 when we moved in. The ecobee 3 thermostat had an issue with high readings of humidity and during our walkthru, I think it was Munn’s that checked the humidity and determined the thermostat was faulty or it might have been ecobee corporate that determined this thru the web, but anyway, they came back out to replace our ecobee 3 lite with an ecobee 5 free of charge under warranty. The tech that came out to replace the ecobee then verified that the ecobee was displaying the same humidity reading of his own device and it was.
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