Top 5 Problems with a Residential Furnace

Residential furnaces, regardless of the brand or model, can encounter various issues. Here are five common problems that homeowners may face with their residential furnaces:

Call the professionals at Aire Serv of Oconomowoc for assistance with any of these issues.

1. Ignition Issues:

• Symptoms: Difficulty starting the furnace, inconsistent heating, or a completely non-functional system.
• Causes: Faulty ignition system, malfunctioning pilot light, or issues with the electronic ignition.

2. Dirty or Clogged Air Filter:

• Symptoms: Reduced airflow, uneven heating, or reduced energy efficiency.
• Causes: Accumulation of dust and debris in the air filters, leading to restricted airflow and decreased system efficiency.

3. Thermostat Problems:

• Symptoms: Incorrect temperature readings, unresponsive thermostat, or difficulty controlling temperature levels.
• Causes: Malfunctioning thermostat, wiring issues, or incorrect thermostat settings.

4. Blower Motor Issues:

• Symptoms: Noisy operation, reduced airflow, or complete system failure.
• Causes: Worn-out or damaged blower motor, issues with the motor bearings, or out of balance blower wheel.

5. Gas Valve or Flame Sensing Problems:

• Symptoms: Intermittent heating, short cycling, or the furnace not staying on.
• Causes: Faulty gas valve, dirty or broken flame sensor, or problems with the gas supply.

Regular maintenance, including checking and replacing air filters, inspecting the ignition system, and cleaning components, can help prevent some of these problems. However, if you experience persistent issues or if your furnace is not functioning correctly, it's advisable to consult with a qualified HVAC technician for a thorough diagnosis and proper repairs. Regular professional inspections can also help identify potential issues before they become major problems.