I googled "supply and return air temperature difference" because I think there is an issue. I'll go by The Home Depot on my way home to get a temperature probe. But... if the difference is less than 16 degrees could that make there be high humidity in my house?
Right now my Nest thermostat is set on 72, the outside temp is 75 and the inside humidity downstairs is 60% and upstairs is 61%.
From Google:
Low Delta T issues (less than 16F difference)
Low evaporator Delta T means that there's an excessively small difference between the incoming and outgoing temperature. Low evaporator Delta T problems include:
Right now my Nest thermostat is set on 72, the outside temp is 75 and the inside humidity downstairs is 60% and upstairs is 61%.
From Google:
Low Delta T issues (less than 16F difference)
Low evaporator Delta T means that there's an excessively small difference between the incoming and outgoing temperature. Low evaporator Delta T problems include:
- Low refrigerant (Freon) levels
- Weak compressor valves
- Leaking reverse valves
- Leaking return air ductwork