If you are having trouble with your furnace short cycling, don’t worry – it’s a common issue, and several solutions can help.
Fortunately, by taking some simple steps to fix this problem, you can improve your home’s comfort level and save money in the long run.
This blog post examines what causes short cycling furnaces and how to fix them.
How to Fix Short Cycling Furnace?
Short cycling is when your furnace turns on for a few minutes before turning off again, sometimes even before the entire house has been warmed up.
This wastes energy and puts unnecessary strain on the system, leading to expensive repairs.
1. Check the Air Filter
A clogged air filter is one of the most common causes of short cycling. When the air filter is dirty or blocked, it restricts the airflow, causing the furnace to overheat and shut off prematurely.
To fix this issue, replace the air filter with a clean one. We recommend checking and replacing the air filter every 1-3 months.
2. Inspect The Thermostat
Another possible cause of short cycling is a faulty thermostat. Make sure that your thermostat is set to the correct temperature and mode.
If it’s an older thermostat, consider upgrading to a programmable one, which can help regulate the temperature more efficiently.
3. Clean the Flame Sensor
The flame sensor is responsible for detecting the presence of a flame in your furnace. Over time, it can accumulate dirt and debris, causing it to malfunction.
Clean the flame sensor with a soft cloth or fine-grit sandpaper to remove buildup. Be careful not to damage the sensor while cleaning.
4. Check the Ventilation System
A poorly designed or blocked ventilation system can also contribute to short cycling. Check all the vents and ducts to ensure furniture, rugs, or other objects do not obstruct them. Additionally, ensure the vents are open and free from debris.
5. Schedule Professional Maintenance
If you’ve followed the above steps and are still experiencing short cycling, it’s time to call in the professionals.
A certified HVAC technician can thoroughly inspect your furnace, identify any underlying issues, and provide the necessary repairs or adjustments.
it’s Important to Take Preventive Measures to Avoid it in the Future. Here are Some Tips:
- Regularly clean and maintain your furnace to prevent dust and debris buildup.
- Keep the area around your furnace clear of any flammable materials.
- Ensure proper insulation in your home to minimize heat loss.
- Invest in regular professional maintenance to catch any potential issues before they become major problems.
What is the Difference Between Short Cycling and Normal Cycling Furnaces?
The main difference between short and normal cycling furnaces is how long the furnace runs. In a normal cycle, the furnace will run until it reaches a set temperature, usually two or three times longer than in a short cycle.
Short cycling is when a furnace runs for shorter cycles, often resulting in less energy efficiency. It can also cause premature wear on your system and excessive noise levels due to constant starting and stopping.
Additionally, short cycling may result in uneven heating throughout your home because hot air is not given enough time to circulate properly before the next cycle begins.
Normal cycling ensures your system runs efficiently and effectively with minimal breakdowns over time.
Is Short Cycling Always a Sign of a Malfunctioning Furnace?
No, short cycling is not always a sign of a malfunctioning furnace. It can occur in both properly functioning and malfunctioning systems.
In some cases, short cycling can be caused by having an HVAC system that is too large or small for the space it needs to heat.
If your system is too large, it will run for shorter cycles because it cools the space too quickly. On the other hand, if your system is too small, it will run for longer cycles to achieve a comfortable temperature.
Sometimes, short cycling can also be caused by an issue with your thermostat failer or clogged air filter.
Check these components and make necessary repairs or replacements to keep your system running efficiently and effectively.
How Much Does it Cost to Fix a Short Cycling Furnace?
The cost to fix a short cycling furnace will depend on the underlying cause of the issue. If it is due to an improperly sized HVAC system, you may need to invest in a new unit that is correctly sized for your home.
This could cost anywhere from a few hundred dollars to several thousand, depending on the size and type of system you need.
Suppose the issue is due to a thermostat or air filter problem. In that case, the cost should be relatively inexpensive and easy to fix.
Be sure to call a professional HVAC technician to diagnose any issues with your system to determine the best course of action and estimated repair costs.
