Why Does My AC Keep Turning On and Off?
Is your air conditioner constantly cycling—turning on and off more frequently than usual? This issue, known as short cycling, isn’t just annoying—it could also signal a deeper problem that affects your system's efficiency and lifespan. At Integrity Air Solutions, we want to help you understand the root causes and how to address them before they lead to costly repairs.
Common Reasons for AC Short Cycling
Oversized AC Unit
If your AC is too large for your home, it will cool the space too quickly and shut off prematurely—only to turn back on again minutes later. This constant cycling increases wear and tear and reduces energy efficiency.
Dirty Air Filter
A clogged or dirty filter restricts airflow, which can cause the system to overheat and shut off before completing a full cycle. Replacing or cleaning your air filter regularly can prevent this issue.
Thermostat Issues
A faulty or poorly placed thermostat can misread your home’s actual temperature, causing your system to start and stop erratically. Sometimes, simply relocating or recalibrating the thermostat can solve the issue.
Low Refrigerant Levels
Refrigerant is crucial for cooling your home. If levels are low due to a leak, the system may short cycle in an attempt to protect itself. This problem should be addressed by a licensed technician immediately.
Frozen Evaporator Coils
When coils freeze, it can interrupt the cooling process and cause short cycling. Dirty filters, blocked vents, or low refrigerant levels are often to blame.
Electrical or Control Board Problems
Faulty relays, sensors, or wiring in the system can cause inconsistent behavior. These electrical issues should be inspected by a professional to avoid system damage or safety hazards.
Conclusion
