When temperatures drop in Gonzales, TX, a reliable heater is a winter essential. But if your heater keeps running non-stop, it’s more than just a nuisance—it’s a sign of an underlying problem that needs immediate attention.
Typically, a well-functioning heating system runs for 10 to 15 minutes per cycle, with only two to three cycles per hour. If your heater runs continuously without shutting off, it’s time to investigate.
Here are five common reasons why heaters run endlessly and how to address them.
1. Undersized Heating Equipment
If your heater is too small for your home’s square footage, it will struggle to maintain the desired temperature. This often results in longer and more frequent cycles, with your heater working overtime just to keep up.
To avoid sizing issues, hire an HVAC installer who performs a Manual J load calculation before installation. This detailed assessment factors in your home’s unique characteristics, such as:
- Window size and type
- Insulation levels
- Ceiling height
- Building layout
- Household size
A correctly sized heater is crucial for efficient and consistent heating, preventing premature wear and costly breakdowns. Keep in mind that home renovations, like adding new rooms or knocking down walls, can change your heating needs. If your heater was appropriately sized before, recent updates might mean it’s now undersized.
2. Faulty Thermostat
Your thermostat is the control center for your heating system. When it malfunctions, it may send incorrect signals to your heater, causing it to run continuously. Faulty sensors, wiring issues, or a broken switch could be to blame.
Is Your Thermostat in the Right Spot?
Thermostat placement plays a big role in its accuracy. If it’s near a drafty window, a garage door, or even heat-generating appliances, it can misread your home’s temperature. Ideally, thermostats should be installed in central, neutral areas away from cold drafts and direct heat sources. During an annual tune-up, a technician can inspect, calibrate, or even relocate your thermostat if needed.
3. Leaky HVAC Air Ducts
Leaky air ducts can cause your heater to work harder than necessary. Warm air escapes into unconditioned spaces like attics, basements, or crawl spaces, while cold, unfiltered air gets pulled into the system. This not only reduces heating efficiency but also affects indoor air quality (IAQ).
If your heater runs non-stop and you’ve noticed more dust or worsened air quality, leaky ducts could be the culprit. Sealing these leaks will improve efficiency, reduce strain on your system, and help maintain consistent temperatures throughout your home.
4. Dirty HVAC Air Filter
Clogged air filters force your heater to work harder to circulate warm air. When airflow is restricted, your system uses more energy and runs longer to heat your home. A dirty filter may also lead to heavy, stagnant indoor air and declining IAQ.
To prevent this, replace your HVAC filter every one to three months, depending on usage and your home’s air quality. A clean filter not only helps your heater operate efficiently but also extends its lifespan.
5. Malfunctioning Blower Motor
The blower motor is responsible for distributing warm air throughout your home. If it’s not functioning properly, your heater may run continuously without effectively warming your space. Symptoms of a faulty blower motor include:
- Cold or lukewarm air from vents
- Strange noises like squealing or rattling
- Reduced airflow
- No airflow at all
Blower motor issues can stem from a blown fuse, corroded wiring, or a failing circuit. A professional heating repair technician can quickly diagnose and resolve these problems to restore your system’s performance.
6. Broken Limit Switch
The limit switch monitors your heater’s temperature to prevent overheating. When it fails, your heater may run endlessly, even if the temperature inside doesn’t change. Other signs of a faulty limit switch include frequent shutdowns, short cycling, or rising energy bills. This issue can also impact your blower motor’s performance, leading to further inefficiency.
Expert HVAC Solutions in Gonzales, TX
At GVEC Air Conditioning & Heating, we’re a heating services company specializing in diagnosing and fixing HVAC issues for homeowners in Gonzales and the surrounding areas. Whether your heater won’t stop running or you need routine maintenance, we’re here to help. Our services include heater installation, repairs, ductwork, and indoor air quality improvements.
We also offer preventative maintenance plans to keep your HVAC system running efficiently year-round. Contact us today to schedule an appointment and experience comfort and reliability at its best!
