Should you leave furnace fan running all time?

Lower your Utility Bills Running your furnace fan all the time could save you money each month because having more even temperatures in the home results in the heat or air conditioner running less. Since the fan uses much less power than the outdoor unit, you save money in the end.

What should I do if my Furnace Fan wont turn off?

For a quick check (and hopefully to resolve the issue), check the thermostat wire terminations at the thermostat and the furnace. If you are lucky, you will find the problem there. If not, then you will have to pull new thermostat wire from the furnace to the thermostat.

Where is the fan limit switch on my furnace?

If your furnace fan is set to AUTO and is still running, then move on to the next section. Your fan limit switch is located directly under your furnace hood and controls when your furnace blower turns on and off.

Is it normal for a Furnace Fan to run all the time?

When your thermostat is set to AUTO, your furnace fan should blow only when your furnace is in the middle of a heating cycle. But if your fan runs constantly, regardless of whether your furnace is heating, that’s not normal.

How long does it take for Furnace Fan to stop blowing?

This shuts the furnace down and prevents your thermostat from calling for more heat. If the furnace was in the middle of a heating cycle, wait 3 to 4 minutes for the blower fan to stop running. Did your furnace fan stop blowing?

What does it mean when Furnace Fan won’t turn off?

On the chance that there is a shorted thermostat wire, a problem that can also cause the A/C or warm air furnace fan to run continuously see THERMOSTAT WON’T TURN OFF. Details about the manual FAN ON or FAN AUTO ON switch right at the furnace or air handler at the manual at BLOWER FAN CONTINUOUS OPERATION.

What to do if your furnace won’t stop running?

CHECK for a MANUAL – ON Switch – At the furnace or air conditioner air handler or blower unit: the fan limit switch may include a switch that manually keeps the fan running. We discuss this switch right here. If you don’t know where to find the limit control switch on your furnace or air handler,

Just contact us and we can get your furnace fan running normally in no time. Your fan limit switch is located inside the furnace panel cover, usually near the upper right corner. Source. The fan limit switch is responsible for turning the blower on and off at the appropriate times.