Furnace Won't Turn On
Furnace won't start? Check power, the thermostat, door switch and error codes, then call for a licensed furnace repair technician in your state.
What furnace repair covers
Gas, oil, propane and electric furnace repair, connected to licensed local technicians across the United States.
Every service page explains the problem in plain terms, lists safe checks, and shows what a licensed technician tests. If you already know you need help, call (888) 555-0141.
Service guides
Furnace Blowing Cold Air
Furnace running but blowing cold air? Learn the common causes, from the fan setting to flame sensors and limit switches, and get a licensed repair.
Furnace Short Cycling
Furnace turning on and off every few minutes? Short cycling wastes fuel and wears parts. Causes, fixes and when to call a licensed technician.
Ignitor & Flame Sensor Repair
Furnace clicks but won't light, or lights then goes out? Ignitor and flame sensor problems explained, with when to replace and when to clean.
Noisy Furnace Repair
What furnace noises mean: banging on startup, squealing, rattling, humming and clicking. Which ones are urgent, and how they're repaired.
Costs and coverage
See the cost guide for what changes the price, the FAQ for quick answers, and the coverage map for your state.