A Guide To Repairing Your Heating System

Dec 13, 2023 | heating and cooling

When your home’s heating system encounters a problem, it might be tempting to delay fixing it to save money. However, ignoring these issues can lead to more significant problems, costing you more in the long run. Instead of putting off heating repairs or attempting to fix them yourself, it’s best to rely on a trained HVAC professional to restore your comfort. Let’s delve into the basics of heating repair, avoiding any location-specific details.

Topics Covered in This Article

How to Identify a Heating System Problem

Most heating system problems start small, making them relatively easy to spot. Here are some signs to watch for that mean you need to get heating repair in Knoxville TN:

Changes in Heating Output: If you notice fluctuations in heating output and airflow, your furnace may be struggling.
Short Cycling: A furnace that turns on and off rapidly may indicate an issue.
Unusual Sounds: Pay attention to any odd noises coming from your heating system.
Leaks: Look for leaks, especially around your blower or air handler.
Pilot Light Changes: If the pilot light frequently malfunctions or its flame color changes, it’s a sign of trouble.
Carbon Monoxide Detectors: Frequent activation of carbon monoxide detectors may signal a gas leak.

Addressing Water Leaks

Your heating system may naturally produce some water as warm vapor condenses into a liquid when it encounters a cold surface. This water is typically drained away. However, water leaks can occur from failing seals or a cracked heat exchanger. Timely repairs are crucial to prevent dangerous situations like carbon monoxide poisoning.

Understanding Unusual Smells

Your heating system should not produce strange odors. While a faint burning smell at the start of the heating season is normal, other odors should raise concerns:

Mustiness: Indicates a potential mold or mildew issue in the system or ductwork.
Burning Plastic or Rubber: Points to electrical problems or an overheated motor.
Rotten Egg Odor: Signals a natural gas leak, a serious safety hazard.

Furnace Running Continuously

Before calling for repairs, ensure your thermostat is set correctly. The “ON” mode keeps the blower running continuously, even when the furnace isn’t producing heat. If your furnace runs but doesn’t heat, it could be due to issues with the limit switch, blower, or thermostat wiring.

Signs of a Compromised Heat Exchanger

The heat exchanger in your furnace is vital for safety. It separates the blower from the combustion chamber, preventing gas leaks. Signs of a compromised heat exchanger include excessive soot, a changing pilot flame color, water puddles, or chemical-like odors. A damaged heat exchanger requires immediate replacement to ensure safe operation.

Cold Air From Heating System

When your heating system starts a cycle, initial airflow may be colder. However, it should warm up after a few minutes. Consistently cold air may be caused by a dirty air filter, grime on vital components, or an issue with the pilot light.

Pilot Light Issues

A functioning pilot light is essential for starting a heating cycle. If the flame keeps going out, drafts, inadequate gas supply, or a damaged thermocouple may be the culprits. Promptly address these issues to maintain your indoor comfort.

Estimating Heating Repair Costs

Repair costs depend on factors like labour fees, parts, and warranty coverage. Request estimates or upfront quotes from heating contractors in Knoxville TN to avoid unexpected costs. Regular preventative maintenance can help minimize repair expenses.

Emergency Heating Repair

Emergency HVAC repairs are necessary when heating issues cannot wait until regular business hours. These may incur additional fees, but they ensure your family’s comfort and safety during extreme temperatures.