Common Furnace Problems and Recommended Solutions for SC Homeowners


A home with a furnace that’s working properly is comfortable and cozy. And when the furnace in your home is problematic, you’ll know it right away. What you might not know is how to deal with those common furnace issues. 

While furnaces are designed to have a long life, there’s always a chance that you’ll encounter a problem. The good news is that most furnace issues are easy to address, especially if you have a reputable professional helping you maintain and repair your furnace.

Let’s explore some of the most common furnace problems Charleston homeowners encounter and what you can do to address them.

Common Furnace Problem #1: Inadequate Heating

One common furnace issue faced by homeowners is insufficient heat production, which may stem from several factors.

Solution: To ensure adequate heating, follow these troubleshooting steps:

  1. Check the thermostat settings: Ensure your thermostat is set to “heat” and at an appropriate temperature. If necessary, replace the batteries and make sure the thermostat is correctly calibrated.
  2. Examine the air filters: Clogged air filters can restrict airflow and reduce heating efficiency. Clean or replace your filters every month during peak heating season.
  3. Inspect the air ducts: Leaky or blocked air ducts can diminish heating efficiency. Seal any gaps or leaks in the ductwork and remove obstructions limiting airflow.
  4. Call a professional HVAC technician: If these steps do not resolve the issue, contact Fix It 24/7 Air Conditioning to identify and address underlying causes.

Common Furnace Problem #2: Faulty Ignition System

Electronic ignition system failures (either intermittent pilot or hot surface ignition) can prevent your furnace from firing up or maintaining a consistent flame.

Solution: Contact an HVAC technician from Fix It 24/7 Air Conditioning for a proper diagnosis and repair of faulty ignition systems. Our experienced professionals know how best to handle continual adjustment or replacement of ignition parts to ensure safety and efficiency.

Common Furnace Problem #3: Malfunctioning Thermostat

A faulty thermostat can cause inconsistent temperatures, failure to cycle on, or other furnace operation issues.

Solution: To address thermostat malfunctions, take the following steps:

  1. Replace the batteries: Ensure the thermostat has working batteries and is properly connected to your furnace.
  2. Confirm the settings: Verify the thermostat is correctly set to “heat” mode and the desired temperature.
  3. Test the thermostat’s function: If the problem persists, you may need to replace the thermostat or have a Fix It 24/7 Air Conditioning HVAC technician diagnose the issue.

Common Furnace Problem #4: Frequent Cycling

A furnace that continually switches on and off might result from a number of issues, such as an incorrect thermostat setting, a dirty air filter, or a malfunctioning component.

Solution: Troubleshoot frequent furnace cycling by:

  1. Adjusting the thermostat settings: Incorrect settings can cause the furnace to cycle too frequently. Modify the temperature and fan settings to see if this resolves the problem.
  2. Cleaning or replacing the air filter: A clogged filter can hamper airflow and hinder furnace efficiency. Replace the filter regularly to maintain optimal performance.
  3. Calling in professional help: If adjusting the settings and cleaning the filter does not solve the issue, consult an experienced HVAC technician from Fix It 24/7 Air Conditioning for a comprehensive assessment.

Common Furnace Problem #5: Uneven Heating

Uneven heating across different rooms may result from improper furnace sizing, blocked air ducts, or poorly balanced airflow.

Solution: To counteract uneven heating distribution, take the following measures:

  1. Assess and adjust the air duct dampers: Dampers control airflow by regulating the volume of air entering each room. Verify your dampers are correctly set, making adjustments as needed.
  2. Inspect and clean the air ducts: Blocked or leaky ducts can compromise air distribution. Clear any obstructions and seal any gaps or cracks.
  3. Consult a professional HVAC technician: If uneven heating persists, enlist the help of an expert like the technicians at Fix It 24/7 Air Conditioning who can determine and address the root causes.

Preventive Measures to Minimize Common Furnace Issues

To prevent the occurrence of these common furnace problems, consider implementing the following preventive measures:

  1. Regular maintenance: Schedule an annual professional furnace inspection and tune-up to ensure all components are functioning optimally and potential issues are addressed before they escalate.
  2. Monthly filter checks: Clean or replace your furnace filter at least once a month during peak heating season to maintain proper airflow and system efficiency.
  3. Thermostat Upkeep: Regularly inspect and calibrate your thermostat to ascertain that it is correctly connected and functioning as intended.
  4. Promptly address issues: Tackle furnace concerns immediately upon detection to prevent them from worsening and causing further damage to your system.

By taking proactive measures and addressing common furnace issues, Charleston homeowners can maximize efficiency, reduce energy costs, and extend the lifespan of their heating system. When faced with furnace problems, a partnership with Fix It 24/7 Air Conditioning ensures that all heating needs are expertly met, providing homeowners with a comfortable, warm, and safe living environment.

Choose Fix It 24/7 Air Conditioning for Expert Furnace Solutions

In conclusion, identifying and addressing the five common furnace problems outlined in this article can help Charleston homeowners maintain a comfortable, energy-efficient, and safe living environment during the colder months. By enlisting the assistance of Fix It 24/7 Air Conditioning, homeowners can benefit from professional expertise, personalized service, and prompt solutions to their furnace challenges. 

As a family-owned and operated business in Charleston, Fix It 24/7 Air Conditioning offers comprehensive air conditioning, heating, and plumbing services to meet all your HVAC needs. Trust the expert technicians at Fix It 24/7 Air Conditioning to take care of your furnace and provide the high-quality service you need. Don’t wait for small problems to escalate; schedule an appointment for furnace repair in Charleston with Fix It 24/7 Air Conditioning today and have your furnace running smoothly all winter long.


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