Furnace Problems You May Experience Before Spring

As winter settles in Chelmsford, MA, it’s crucial to consider the health of your furnace. Keeping an eye out for common furnace issues can prevent a total heating system breakdown. At MillTown, we’ve compiled a list of common furnace problems you may face before winter ends.

Faulty Pilot Lights

The pilot light, among other mechanical components, might malfunction, causing no heat or intermittent heat. The most common culprits for faulty pilot lights are the thermocouple and the pilot tube.

• The thermocouple, a copper wire inside your furnace, detects the heat of your pilot light and ignites the gas. It acts as a safety feature, shutting off the gas if it doesn’t detect the pilot light. A misaligned or cold thermocouple can lead to arbitrary pilot light outages.
• The pilot tube can become dirty or clogged, preventing the pilot light from functioning correctly.

Defective Blowers

If your blower isn’t running despite a demand for heat, check if the blower motor is functioning. Blower motor breakdowns can result from old age, faulty bearings, electrical power loss, or dirt accumulation. If no visible dirt or debris is blocking the motor, it’s time to call a MillTown technician to service the motor.

Poor Electrical Connections

Over time, the vibrations of a running furnace can cause internal wires to loosen or fray. These wires may eventually short and cause your furnace to shut off. Finding and replacing these loose wires can resolve the issue. Regular furnace maintenance helps identify and repair damaged parts before winter.

Damaged or Dirty Coils

The coil ensures proper air supply through the furnace to heat your home. Clogged or damaged coils can restrict airflow, decreasing your furnace’s efficiency. Ensuring the coils are clean and intact will keep your furnace running smoothly.

Clogged Air Filters

Furnace filters should be replaced every three months to extend the efficiency and lifespan of the unit. If you have pets or allergies in the home, change the filter more frequently. Dirty filters reduce airflow and air quality, straining your furnace and increasing operational costs.

Thermostat Malfunctions

The thermostat measures your home’s temperature and signals the furnace when to turn on. Malfunctions can cause the furnace to run incorrectly, either not shutting off after reaching the desired temperature or not turning on when needed. Inconsistent home temperatures may indicate the need for a professional thermostat check.

Airflow Problems

Furnaces typically have two types of airflow: incoming air and a steady flow of heated air distributed throughout the home. Any restriction in these airflows, such as clogs, blockages, or duct leaks, can reduce furnace efficiency. Addressing these issues promptly ensures quality home heating.

Air Leaks in the Household

Air drafts in your home force your furnace to work harder to compensate for heat loss, increasing energy bills and straining the furnace. Seal any drafty windows, doors, or other areas where air escapes to maintain efficient heating.

If you experience furnace problems this winter, call MillTown. We’re ready to help you today!