4 Symptoms of a Faulty Furnace Limit Switch in Louisburg, NC

Your furnace’s limit switch is an essential piece of safety equipment. It’ll detect potentially hazardous situations and then shut off the furnace. Read on to learn about four signs of a faulty furnace limit switch in your Louisburg, NC home.

1. Blower Fan Doesn’t Shut Off

The limit switch controls the blower fan. In some instances, problems with the limit switch will make the blower fan run constantly. An HVAC expert can advise you of the problem and repair it for you.

2. Furnace Shuts Down Frequently

If everything seems to be in order, yet the furnace keeps shutting down, then there’s a good possibility that the limit switch is bad. At times, the switch can erroneously sense an overheating blower motor.

3. Heating Is Inconsistent

Even if the furnace is running correctly, there could be problems with the heat circulating in your home. If the limit switch is bad, the furnace may blow cool air a significant percentage of the time because it will incorrectly detect the temperature.

4. Complete Lockdown

Modern furnaces have a fail-safe mode that will lock the furnace if there are too many problems. This is largely to prevent a fire.

Once your furnace enters lockdown mode, you can try resetting the limit switch manually by leaving the furnace off for a few minutes and then trying to restart it. If that doesn’t work, then it’s time to bring in an expert.

When you hire us for HVAC work, not only do you get NATE-certified technicians from a company with a quarter century of experience, but you will also get our 100% satisfaction guarantee. Therefore, whenever you require heat pump repairs or a tune-up, give us a call at Alford Mechanical to set up an appointment right away in Louisburg, NC.

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