Goodman Furnace Does Not Light

Stop immediately if you smell gas.

Goodman furnace does not light. Find the gas supply valve next to or behind the furnace and rotate the valve to the open position typically by twisting counterclockwise. This may be the case if your goodman furnace won t ignite but the light is on continuously. Next i checked the on off switch. Turn the furnace off and leave the house.

Your furnace will not run with a triggered float switch so if the float switch is up this is the likely cause and your furnace won t turn on. Your furnace will not turn on if your air filter is clogged. I started with the thermostat. I have a goodman furnace and is not turning on when i turn on the heat on the thermostat.

Read three led flashes to mean your furnace has an open pressure switch circuit or it has an induced draft blower operating. One of the most common culprits of a furnace that is having a difficult time lighting is a low gas supply. Decipher two led flashes to mean the draft blower is not working or your furnace has a short in the pressure switch circuit. Jumped the r and w on the thermostat nothing kicked on at the furnace.

All you need to do is locate the gas supply valve and rotate it in a counterclockwise direction to open it. Turn off the furnace power and repair a short or replace the pressure switch. I then checked the junction box on the furnace. Check your air filter if your furnace won t turn on.