Some problems can prevent your Wexford, PA, home’s furnace from operating correctly. Continue reading to see a few common problems that prevent your furnace from turning on and how to address them.

1. Airflow Problems

An airflow restriction anywhere in your system will cause it to overheat. This triggers the safety mechanisms that shut it down and prevent the system from reengaging until it has sufficiently cooled down.

Air filters are the most common restriction. Check your filters regularly, planning to replace them every 60 to 90 days. Also, consider vacuuming off the intake side about once a month to extend their life and efficiency.

You may also have airflow restrictions on the burners or the heat exchanger. Both of these cause overheating conditions as well. A certified technician should evaluate both of these possible causes and conduct the repair.

2. Ignition Problems

Your system may have several components involved in igniting your system. These include sensors, ignition modules and fuel delivery problems.

Common ignition systems include pilot lights, hot plate ignitors, mercury bulbs and spark ignitors. Regardless of what kind your system uses, if it fails to work properly, then it can’t light the system.

Your thermostat may also pose a problem igniting your furnace. Common problems with a thermostat preventing furnace ignition include improper settings, miscalibration or low batteries.

You can easily check your thermostat for errors. However, you should seek the services of a professional technician to diagnose and repair all other ignition problems.

3. Fuel Problems

If your system isn’t receiving fuel, it’ll fail to engage. Fuel problems are extremely dangerous to troubleshoot and repair. Trained professionals should evaluate and repair any suspected fuel delivery problems.

A very common fuel delivery problem is a dirty flame sensor. This internal sensor makes sure there’s a flame present when the fuel flows into the burn chamber. If it doesn’t detect a flame, it shuts off the fuel flow.

Having your system serviced regularly reduces the risk of inconvenient and expensive emergency service calls. Call Titan HVAC Inc. to schedule your furnace maintenance.

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