Furnace short cycling during sustained cold weather
Why it happens here
Long heating calls in winter expose restricted filters, blocked returns, dirty flame sensors, or overheating conditions. Older Roseville layouts can have limited return airflow, and the furnace may stop before the colder rooms reach the thermostat setting.
Our approach
We inspect the filter and return path, test the thermostat call, and examine flame sensing and safety controls. We measure system response, correct the cause where possible, then verify the furnace completes a normal heating cycle without repeated shutdowns.