Whether you own a new furnace or an older model, keeping it in good condition is vital for its long-term efficiency and comfort. A few simple maintenance tasks can keep your system in peak working order throughout the heating season.

1. Ignitor — $150 to $250 for replacement

The ignitor is the tiny spark that creates Furnace Repair heat in your furnace. It’s also one of the more common parts that requires repair or replacement. If it isn’t igniting, contact an HVAC technician immediately for an evaluation of the problem.

2. Pilot Light – $50 to $70 for replacement

The pilot light is a small, rectangular device that sits next to the burner assembly and tells your furnace when the gas valve opens and a flame is present. It’s a very delicate part that should be handled by a professional to avoid injury or fire.

3. Gas Valve – $300 to $500 for replacement

The gas valve is located in the back of your furnace and helps to control the flow of fuel through the system. It’s one of the most important parts of your furnace, and a leak can lead to serious damage.

4. Water Leak – $210 to $500 for repair

A leaking water line can be a sign of something wrong with your heating unit or the piping that leads to and from it. You’ll want to get it fixed right away as the resulting water damage can be extensive and cause mold and other health concerns.

5. Burning Smell – $25 to $35 for inspection and cleaning

If you notice a burning smell coming from your furnace, this is a serious issue that should be addressed immediately. It’s a sign that the vent pipe is clogged with dust and debris or the furnace is not operating properly.

6. Uneven Temperatures – $50 to $100 for repair

If your furnace is not evenly heating your home, there may be a problem with the distribution of your heat. This could be a ductwork issue or a technological malfunction with your thermostat.

7. Filters – $30 to $40 for replacement

Furnaces use filters to filter air and keep your system clean. These filters are designed to keep dirt, allergens, and other contaminants out of the air. Changing your furnace’s filters regularly can help reduce your energy costs and improve the quality of your indoor air.

8. Tripped Circuit Breaker – $200 to $300 for repair

A tripped circuit breaker is another sign that your furnace needs help. Resetting the breaker usually fixes it, but it’s important to call an electrician to diagnose the problem and make repairs.

9. No Heat – $50 to $100 for repair

A lack of heat can be caused by a number of factors, and it’s always a good idea to schedule an assessment with an expert as soon as possible. Depending on the cause, it could be anything from a burned-out fuse to a severe and potentially dangerous failure.