A furnace is a great home addition because it warms indoor air when it's cold, making your house comfortable. Generally, furnaces are affordable, and you don't need to break the bank to install and maintain them. However, when your furnace ages, it can develop problems that can affect its functionality. Thus, you need to know when to seek repair services. The following are three signs you need a furnace repair service.

1. Your House Is Cold

If your furnace is on but everyone in the house is freezing, you need to call a furnace repair professional. This problem may be due to a clogged filter because dirt and debris can prevent airflow, causing the heat exchanger to overheat and shut down automatically. Consequently, the furnace won't produce warm air. The expert will inspect the filter and change it. It is advisable to change your furnace filter every month to avoid problems.

This problem can also be caused by an extinguished standing pilot light, which is an obvious indication of a thermocouple or ignition system defect. An HVAC contractor can replace these components for you. The furnace can also fail due to minor issues, such as poor settings on the thermostat. Thus, you should always check and reset your thermostat accordingly. If this doesn't help, replace its batteries as they may have died.

Your furnace can stop working if your circuit breaker trips, so you should check and correct it. But if this doesn't fix the problem, get professional help to avoid costly mistakes.

2. Water Pooling Around the Furnace

A leaking furnace is mainly caused by condensation, which can occur as a result of different issues. One option is that your unit's condensate line may have clogged, forcing water droplets to flow in the wrong directions. Alternatively, your condensate pump has an issue, or there might be a break in the furnace's humidifier. Heat exchanger issues can also cause water to leak.

An HVAC contractor will inspect your furnace to find the source of the issue and solve it. You should not ignore this problem as it can lead to water damage.

3. Carbon Monoxide Alarms Going Off

If your furnace is powered by fuel and your carbon monoxide alarms go off, you need a furnace repair service. This problem may be from a crack in the heat exchanger, releasing carbon monoxide into your indoor air. If this happens, turn off the system and call a professional immediately.

If your furnace exhibits any of these signs, you should get a furnace repair service early enough to prevent further damage. It is important to work with a reputable HVAC contractor for reliable and timely repair services. Contact a furnace repair service for more information.