If your electric bill is much higher than usual and there isn’t an obvious cause, it’s time to call for HVAC system repair. The increased electric bill is a sign that something isn’t working right, which could be causing your system to cycle more frequently or run longer to try to keep your home comfortable. This not only increases your bill but can cause excess wear and tear on the system, leading to it breaking down more frequently. Once the issue is fixed, your energy costs should return to normal.