Check the thermostat
Confirm it is set to heat, set a few degrees above room temperature, and has working batteries. A blank display usually means dead batteries or a wiring problem.
Check power and the breaker
Furnaces have a service switch that looks like a light switch near the unit. Make sure it is on, and check the breaker for the furnace has not tripped.
Replace a clogged filter
A very dirty filter restricts airflow and can make the furnace overheat and shut down on its limit switch. Replace it and try again.
Look at the gas supply
Make sure the gas valve at the furnace is open. If you smell gas at any time, leave the building immediately and call the gas utility from a safe place. Do not use switches or phones inside.
Signs it is a real repair
Clicking with no ignition, a blower that runs without heat, repeated short cycles or error codes usually point to a failed igniter, flame sensor, control board or limit switch. A technician can diagnose these quickly.
Need a hand?
If it is more than a simple fix, we are a call away in Clifton and nearby towns.