5 Common Reasons Why Your Heater Is Short-Cycling
A heater short cycling can be pretty confusing since it technically works sometimes. If the heater doesn’t turn on at all, you usually call a professional to sort things out. But what if it only comes on for a short time?
Short cycling occurs when your heater turns on and off repeatedly, leaving you with uncomfortable temperatures once the cold season comes back around. Before you reach out to a technician, try our troubleshooting guide to see if you can narrow down the problem and fix it.
Don’t have the time to figure out your heater problems? Total Comfort takes the work off your hands with fast heating services.
5 Common Causes Why Your Heater Is Short Cycling
Heaters have built-in safeguards to avoid overheating, so it’s usually a good sign if it shuts off once in a while. However, a heater constantly short cycling usually points to an inner mechanism that’s become damaged or worn out.
Heaters commonly short cycle for these reasons.
Airflow Issues
Airflow problems in heating systems can cause your unit to shut down to avoid overheating. Check your filter to make sure it’s not too dirty.
Thermostat Problems
“Why is my heater short cycling when the thermostat says it’s too cold?” you might be wondering. A malfunctioning thermostat gives your heater the wrong signals, resulting in random shutdowns. Troubleshoot by turning on different settings to see if the cycling stops.
If not, you may need a professional to calibrate your thermostat or install a new one. Smart thermostats are one of the many services we offer homeowners. You’ll enjoy accurate readings, scheduled temperature settings, and remote access.
Dirty Coils or Heat Exchangers
Your heating system gradually accumulates dust, debris, and mold. If your coils or heat exchangers are too dirty, warm air can’t travel properly. Common signs of this problem, aside from your heater short cycling, are chemical odors and condensation buildup.
Incorrectly Sized Heater
If your heater’s too small, it may turn off prematurely because it’s being left on for far too long in a room it can’t heat up. We can help you install a new heater that’s appropriately sized, energy-efficient, and long-lasting.
Age
While yearly heat pump or furnace repair can extend your equipment’s lifespan, sometimes your heater is just too old to keep up with modern demands. We highly recommend homeowners start looking for a heating replacement once the unit reaches eight years old.
Contact Total Comfort for expert heating repair.
How Short Cycling Affects Your Heater
Your heater short cycling is more than just annoying. It creates a domino effect of equipment and financial problems that only get worse over time.
Poor Performance
A heater letting out weak, random spurts of heat makes your home feel like a jigsaw puzzle. You have to bundle up in layers and weatherstrip your doors in an effort to stay warm.
Increased Wear and Tear
The harder your heating system works, the more it wears itself out. Your heating system risks a complete shutdown earlier than usual from the harder-than-usual exertion.
Higher Energy Bills
Leaving your heating unit on longer means your energy bills go up. When you don’t even get consistent heating, you’re essentially paying more for no good reason.
3 DIY Fixes for Short Cycling Heaters
When your heat pump, HVAC, or furnace is short cycling, there are a few quick fixes you can try. Beginner and experienced homeowners can swap out filters, troubleshoot thermostats, and clean vents before calling in professional help.
Replace Air Filters
We recommend changing your filters every three months (or sooner if one looks dirty). The better the airflow, the less likely your system will shut down from overheating.
Inspect Thermostat
Test your thermostat every few months to make sure its readings are lining up with your comfort. If it keeps reporting higher temperatures but you’re freezing cold, it’s time for a calibration or replacement.
Clean Vents
Learning how to fix a short cycling heater also means taking preventative measures to keep it from shutting down in the first place. Dirty vents often make heating systems shut off, so clearing them can prevent issues.
To clean vents, turn off your heating system’s power, then unscrew your air vents. Wipe them down with a dry, soft rag or use a thin vacuum nozzle to suck up dust and debris.
When to Call a Professional
A heater running too frequently or infrequently may need a second opinion. You know it’s time to call a heating technician when you’re dealing with problems like:
Continued short cycling, even after DIY fixes
Potential system damage, like odd smells or leaking
Energy bills that don’t go down despite lower usage
Total Comfort offers a 100% Satisfaction Guarantee for all our heating repair, maintenance, and installation jobs. Give us a call to learn more about how we can help!
Total Comfort Has Fast, Dependable Heating Solutions
We established Total Comfort in 2002 to make sure homeowners in Northern Virginia always have access to consistent heating. You don’t need to adjust your day-to-day life to a chilly home; we have an experienced team ready to help.
You can find us throughout Fredericksburg, Richmond, and the surrounding areas helping homeowners with heating, cooling, and plumbing problems.
Can’t figure out why your heater is short cycling? Schedule an appointment online to have one of our technicians inspect and repair your system!