You rely on your furnace to keep you warm and comfortable during the coldest periods. However, problems can develop with the unit over time. Here are some of the most common concerns that indicate it’s time to contact a furnace repair technician.

What Kinds of Furnace Problems Are Most Common?

1. Clogged Air Filters

It’s not unusual for filters to become clogged with dirt and debris. That forces the unit to work much harder than necessary to circulate warm air throughout the home. It can even cause damage to the device’s limit switch, which is designed to control the fan. Without replacing the filter, the appliance’s parts will eventually wear down and lead to frequent furnace repairs or premature failure.

2. Sudden Heating Failure

There are several reasons why the furnace may fail to produce heat. It could be due to a faulty thermostat or one that isn’t set to heat. Check the circuit breaker to see if there’s a tripped fuse, then reset it and try the heater again. If this doesn’t work, the issue could be due to problematic wiring in the breaker box.

3. Unusual Furnace Noises

Be on the alert if your furnace suddenly produces strange sounds. A rattling noise, for example, could be indicative of a simple fix, like loose parts that need to be adjusted. If it squeals during operation, however, it may be that the motor’s belt disconnected. A grinding or scraping noise is a particularly concerning sound that typically suggests the ball or motor bearings are worn out. You should turn off the unit and contact a furnace repair technician promptly.

4. Yellow Pilot Light

The pilot light on your furnace is normally a small blue flame. That’s an indication that it’s receiving enough oxygen, and that the furnace is functioning properly. When oxygen intake is limited, the light turns yellow. Usually, this occurs if the light’s intake valve becomes clogged with debris. That suffocates airflow and prevents proper combustion, which can lead to carbon monoxide leaks. Your burner service technician can usually fix the problem by cleaning the intake valve.
 

Whether you need to schedule furnace repairs or an inspection, you can trust in the team at Gary’s Repair & Burner Service in Ester, AK, to assist. Offering over 30 years of industry experience, the company handles everything from furnace cleaning to complete replacements. Your comfort is their priority, which is why they offer around-the-clock service. Visit them online to learn more about how they can help, or give them a call at (907) 474-0736 to schedule an appointment.