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Your Go-To Furnace Troubleshooting Checklist

Troubleshooting a Furnace: A Step-By-Step Guide

Ensuring your furnace is in working order as temperatures drop and winter approaches is important. It can be incredibly frustrating if you’re experiencing problems with your furnace. By following these simple steps, you'll be able to diagnose common furnace issues quickly and easily without having to call an expert every time something goes wrong – saving you both time and money.

This blog will cover seven easy steps for diagnosing common furnace issues. Use these tips as guidance towards solving them yourself.

1. Check the Thermostat

The first step to troubleshooting a furnace is checking the thermostat. Ensure it is set to “heat” and the correct temperature settings. If the thermostat isn’t working properly, this could be causing your furnace issues. Try replacing the batteries or check the breaker box if necessary.

2. Inspect the Pilot Light

Another possible cause of furnace malfunctions is a faulty pilot light. This small flame should always be lit when your unit is running, so if it has gone out, this could be causing issues with your system. To relight it, find the reset switch located near the pilot light and hold it down for several seconds until you hear a click or see an indication onscreen that the light has been reignited.

3. Clean or Replace Your Furnace Filter

Clogged or dirty filters can cause various problems with furnaces, including poor air circulation and insufficient heating power. Cleaning or replacing these filters every three months can help keep them in good condition, reduce wear on other system components, and increase energy efficiency in your home overall.

4. Look at Your Flame Sensor

Another component that may need to be cleaned or replaced is your flame sensor rod, also known as a “flame probe.” This rod monitors how much heat is being produced by your system. If too little heat is detected, it will shut off automatically for safety reasons; if this happens, you may need to clean or replace this component depending on its condition after inspection.

5. Check for Blockages

Blockages in ducts or vents can interfere with airflow, which causes problems with heating efficiency and comfort levels in homes; blockages can also lead to overheating, which increases the risk of fire hazards due to improper ventilation of exhaust fumes from appliances such as water heaters and dryers.

Be sure to inspect all areas of ductwork regularly for any signs of blockage such as dust build up, obstructions like the furniture placed too close to vents, etc., so that any potential issues are addressed quickly before they become more serious problems down the line.

6. Inspect Electrical Components

Faulty electrical components, such as wiring connections, can lead to various problems, including motor failure within the HVAC system due to fluctuating power levels caused by improper wiring connections.

Inspect all electrical components regularly for signs of damage, such as frayed wires, loose connections, etc., so any potential issues are addressed quickly before they become more serious problems down the line.

7. Contact an Expert

Troubleshooting furnaces don't have to feel like an impossible task. When all else fails, contact an HVAC specialist. Our team at GMG HVAC INC. has access to specialized tools that most homeowners need access to for certain repairs.

We will also provide helpful advice on how best to maintain your system efficiently over time, ensuring long-lasting performance from your equipment without needing frequent repairs. This will save money on repair costs and energy bills over time, so call us today at (631) 309-2535 to schedule your appointment.