The answer to 'why is my ductwork short cycling' is that there are several common causes, including a malfunctioning thermostat, dirty air filters, leaks in the ductwork, or an oversized HVAC system. Short cycling occurs when the HVAC system turns on and off rapidly, which can waste energy and lead to uneven heating or cooling in your home.
Some key signs of short cycling include the system turning on and off more frequently than normal, uneven temperatures throughout your home, and higher energy bills. Resolving the issue often requires troubleshooting the system to identify the root cause, such as adjusting the thermostat settings, replacing air filters, sealing ductwork leaks, or having a professional evaluate the HVAC system sizing.