When facing issues with your heating system, knowing when to call furnace emergency repair services and when to tackle the problem yourself can be a real game-changer. As winter approaches, it’s essential to ensure your furnace is in tip-top shape. But not every furnace issue requires a pro’s touch. Some can be fixed with a bit of DIY spirit. Let’s break down the furnace challenges to see what you can handle and when it’s time to dial up the experts.

DIY or Not to DIY: That’s the Furnace Question

When it comes to furnace troubles, here’s a quick guide to help you decide whether to take the DIY route or call in the experts:

1. Replacing or Cleaning the Filter:

What to Do: Locate the filter, typically found in the furnace itself or in a return air vent. Check if it’s clogged with dust and debris. If it is, either clean it (if it’s a reusable filter) or replace it with a new one.

Why It’s Important: A clean filter ensures proper airflow, prevents dust and dirt from entering the furnace, and keeps it running efficiently.

DIY Difficulty: Easy. This task requires minimal tools and expertise.

2. Thermostat Troubleshooting:

What to Do: Check if the thermostat is set to “heat” and the temperature is set higher than the current room temperature. Replace batteries if it’s battery-operated.

Why It’s Important: Incorrect thermostat settings or dead batteries can prevent the furnace from operating correctly.

DIY Difficulty: Easy. It’s a straightforward task that requires no special tools.

3. Relighting the Pilot Light:

What to Do: For furnaces with a pilot light, follow the manufacturer’s instructions to safely relight it. For electronic ignitions, resetting the system might involve turning the power off and then on.

Why It’s Important: A pilot light is essential for the operation of older furnaces, and an electronic ignition must be functioning correctly for newer models.

DIY Difficulty: Moderate. Care should be taken, especially with gas furnaces, to follow safety guidelines.

4. Strange Noises:

What to Do: Identify the type of noise. Squealing might indicate a belt problem, while banging could suggest an issue with the blower assembly.

Why It’s Important: These noises can be symptoms of potentially serious problems that could worsen if not addressed.

DIY Difficulty: High. Diagnosing and repairing mechanical issues typically requires professional expertise.

5. Furnace Not Turning On or Frequent Cycling:

What to Do: Check for obvious issues like a tripped circuit breaker or a blown fuse. However, if these are not the causes, the problem may be more complex.

Why It’s Important: These symptoms can indicate serious issues like a malfunctioning thermostat, faulty wiring, or a broken heat exchanger.

DIY Difficulty: High. Most of these problems require a professional diagnosis and repair.

6. Blower Runs Continuously:

What to Do: This issue often relates to the limit switch. A quick check is to ensure the thermostat isn’t set to “fan” mode.

Why It’s Important: A continuously running blower can lead to unnecessary wear and tear on the furnace.

DIY Difficulty: High. Repairing or replacing a limit switch involves dealing with electrical components and should be done by a professional.

7. Gas Leaks:

What to Do: Evacuate the area immediately and contact emergency services or a professional furnace repair service. Do not attempt to locate or fix the leak yourself.

Why It’s Important: Gas leaks are extremely dangerous and can lead to fire or explosion risks, as well as health hazards from gas inhalation.

DIY Difficulty: Not advisable. Gas leak repairs should only be handled by qualified professionals due to the high safety risks involved.


Deciding whether to DIY or call for professional furnace emergency repair services boils down to a few key factors: the nature of the problem, your own skill level, and the risk involved. For simple, low-risk tasks like filter changes or thermostat checks, roll up your sleeves and give it a go. But for anything that involves complex mechanics, electrical work, or gas, the safest bet is to call in the experts.

In the end, your furnace is essential to your home’s comfort and safety. While it’s great to be handy and save some money where you can, it’s also important to recognize when a problem is beyond your expertise. Knowing when to call in the pros isn’t just smart; it’s a decision that could save you time, money, and ensure the safety and warmth of your home. So, assess each situation with care, and choose the path that keeps you and your furnace running smoothly.