I live in a house that is less than 1 year old. We have a Ruud heat pump. I changed the thermostat to a Honeywell RTH6350 in hopes of saving some money by having program options. About a month ago our heat went out and the contractor came to repair it. He had to replace a circuit board in the outside unit. Ever since that time, the AUX heat will come on whenever the heat comes on. Today is was in the 60's outside and I bumped the thermostat from 70 to 71. AUX came on about a minute after the heat did. The contractor did check the gas levels and said they were good. I have called him about this AUX issue and he says that it's in the thermostat. Of course since it's not the thermostat that he installed he's offering no help.
I do have to options in the settings that I wonder if will help.
Function 6: Stage 2 Heat Cycle Rate: I have 9)Electric Furnace chosen. My other options are gas/oil, hot water or HE, and Gas/oil steam/gravity.
Function 8: Emergency Heat Cycle Rate: I have 9)Electric Furnace chosen again. I have the same other options.
Thanks in advance for helping!