It's possible the transformer was undersized. Need to measure amps and voltage drop to diagnose properly. The electric company would probaly do this before swapping the transformer.
Blaine has touched on this but I don't think it's been answered, do you leave the thermostat on one setpoint or is it programed? Do you manually adjust the thermostat up and down based on activity or comfort level?
I have an air source heat pump that I installed a few years ago and had a very hard time convincing the wife to leave the settings alone.
They (HVAC Company) should have conducted a "Manual J" to determine the required heating and cooling load for your house. I bought some software and did this myself when I installed our system. It's a pretty good experience especially for an older home as you can change paramiters (like increased insulation) and see the effect imeadiatly.
Last edited by tejasrojas; 01/28/0903:25 PM. Reason: Depends on what "They" means
