On average, heaters should run two to three heating cycles each hour. Each of these cycles should last just 10 to 15 minutes. If your heater runs nonstop, there’s a problem. The following are several reasons why heaters run all the time.
Incorrect Thermostat Settings
Fortunately, nonstop operation isn’t always an indication of mechanical problems or the need for heating repairs. Sometimes, heaters run continuously due to incorrect thermostat settings.
Someone in your home may have cranked your thermostat too high. If your thermostat is set to 85 degrees Fahrenheit, it will run longer heating cycles with shorter breaks in between. With high thermostat settings, constant operation could be necessary for outpacing ongoing heat loss.
Some thermostats have “On” and “Auto” settings. Using the “On” setting doesn’t turn your heater on. Instead, it initiates your HVAC system’s blower motor for nonstop air circulation. If you use the “AUTO” setting instead, the blower fan will kick into action only during active heating cycles.
If your thermostat settings are correct, there’s a chance that your thermostat is malfunctioning. HVAC technicians can test your thermostat, assess its location, and calibrate it accordingly.
Obstructed Airflow
Airflow obstructions diminish the efficiency and effectiveness of heaters. Heaters have a harder time taking air in, cycling it through or over their heat exchangers, and distributing it evenly. Common airflow obstructions include:
- Dirty air filters
- Dirty heat exchangers, burners, and blower fans
- Closed or blocked HVAC air vents
- Leaky or obstructed air ducts
By finding and fixing airflow issues, you can restore normal functioning and cut your heater’s energy use.
Improper Furnace Sizing
Furnaces that are too small for their service areas aren’t powerful enough to get the job done. These heaters run longer-than-normal heating cycles throughout their service lives. Undersized heaters use more energy, experience more problems, and have significantly shorter lifespans as a result.
Blower Fan Problems
Clogged blower motors, bent fan blades, and faulty motor switches can prevent heaters from cycling and distributing air effectively. You can avoid most blower motor and blower fan issues by scheduling routine heater maintenance. If you have a damaged or faulty blower motor or fan, your furnace might make loud rattling, grinding, or shrieking sounds during operation.
Nonstop heater operation increases wear and leads to higher home energy bills. If you use a gas- or oil-fueled furnace, continuous operation will significantly increase your carbon footprint as well.
With professional heater sizing and installation and diligent heater care, you can avoid the decreased home comfort and elevated costs of nonstop heating. To schedule professional heating maintenance in Tucson, AZ, contact Pride today!