Common Furnace Problems and How to Fix Them (or When to Call a Pro)

As the colder months approach, ensuring your furnace is in top working condition is essential for maintaining a warm and comfortable home. While some furnace issues can be resolved with simple troubleshooting, others need the skill of a professional. This guide will help you find common furnace problems, offer basic troubleshooting tips, and explain when to call a PMG Mechanical professional.

Thermostat Issues: Check Before You Panic

Often, furnace problems are actually thermostat issues. If your furnace isn’t turning on or there’s no heat:

• Check the settings: Make sure it’s set to “heat” mode, and the temperature is higher than the current room temperature.
• Check the batteries: Replace the batteries if your thermostat isn’t functioning correctly.

Frequent Cycling: Filter and Airflow Check

If your furnace cycles often, it is an airflow issue or a clogged filter.

• Replace or clean the air filter. A dirty filter restricts airflow, making the furnace work harder, which can lead to frequent cycling.
• Check the air vents: Make sure they are open and unobstructed to improve airflow to the furnace.

The Furnace Doesn’t Heat at All: Gas Supply and Pilot Light

A furnace that doesn’t produce heat can have gas supply issues or pilot light issues.

• Check the gas supply valve: Ensure it’s fully open to allow gas to reach the furnace.
• Inspect the pilot light: If the pilot light is out on older models, relight it using the manufacturer’s instructions.

Noisy Operation: When to Seek Help

Unusual noises from your furnace, like rattling, banging, or whining, can show mechanical problems.

• Tighten loose components: Sometimes, tightening a few screws can reduce rattling noises.
• Lubricate the motor: If the noise persists, lubricate the furnace blower motor.

When to Call a Professional from PMG Mechanical

Some issues, like persistent noises, frequent cycling after troubleshooting, or problems with the furnace’s ignition system, are best handled by professionals. Also, annual maintenance by a qualified technician can prevent many common issues.

Contact PMG Mechanical for Expert Furnace Repair

If you’re experiencing persistent furnace problems or it’s time for annual maintenance, don’t hesitate to contact PMG Mechanical. Our team of experts is ready to provide high-quality service and ensure your furnace runs efficiently and safely throughout the winter.