Why Is My Furnace Short-Cycling? Signs, Causes & What to Do
Key Takeaways Short-cycling means your furnace turns on and off in short bursts, usually under five minutes, without fully heating your home. The most common causes are dirty filters, oversized units, faulty flame sensors, clogged flues or vents, low refrigerant in heat pump systems, and cracked heat exchangers. A dirty filter is the easiest fix […]
