Your FPL bill jumped and nothing changed: reading it the way a Palm Coast technician does

Read kilowatt-hours, not dollars

The dollar figure on an FPL bill moves for reasons that have nothing to do with your house: fuel charges, rate adjustments, the number of days in the billing cycle. The kilowatt-hour line is the one that tells you whether the house used more electricity. FPL prints this month against the same month last year, and its online account shows daily use. Look for two things: whether total kWh is up, and whether the daily graph shows a step change on a particular date. A step change points to something that broke or changed on that day. A gradual climb through June and July points to a system that’s losing efficiency as the heat rises.

If kWh is flat and the bill is up, the answer is on FPL’s side and no technician can fix it. If kWh is up, keep reading.

Rule out what isn’t the air conditioner

In a Palm Coast house the air conditioner is the largest load but not the only one that can jump. Before calling, check:

• The pool pump. New timer settings, a failing motor, or a pump running 24 hours after a storm reset.
• The water heater. An electric element failing or a tank leaking and reheating constantly.
• A second refrigerator or freezer in the garage. Hot garage, old compressor, door seal gone.
• Heat strips running by mistake. A heat pump thermostat set to a mode that brings on auxiliary heat during cooling, often after a power outage or a battery change.
• Guests, a new household member, or someone newly working from home. “Nothing changed” often means “nothing I noticed.”

If none of those explains the jump, the system is the suspect.

The HVAC suspects, ranked by how often we find them

1. Low refrigerant. The system runs longer to do the same cooling. A slow leak on a twenty-year-old coil is the single most common cause of a creeping summer bill in this city.
2. Dirty coils. Outdoor coil matted with clippings and spring pollen; indoor coil coated after years of one-inch filters. Both make the compressor work harder.
3. Failing capacitor or hard-starting compressor. Draws high current on every start, and a short-cycling unit starts a lot.
4. Duct leaks. Cooled air blown into the attic, hot attic air pulled into the return. A quarter of the system’s output lost in a 1970s Palm Harbor attic isn’t unusual.
5. Thermostat or schedule problems. A reset schedule, a dead battery, or a fan left on constant.
6. Age. A 2005 system at twenty years simply uses more electricity per ton of cooling than it did new, and far more than a current system.

Ask about an efficiency check

The test we run at the house

We put a clamp meter on the compressor and compare running amps to the nameplate. We read pressures and temperatures on both sides and calculate whether the charge and the coil performance are where they should be. We measure the temperature drop across the air handler and the airflow at the registers. We look at the duct in the attic, and we check the thermostat’s mode, schedule and whether the heat strips are being called. That hour produces a specific answer: this component is costing you this much performance, and here is what it costs to fix. If the system is simply old and working as well as a twenty-year-old system can, we say that too.

When the bill says replace

The replacement conversation starts when a low charge traces to a coil leak on a system past fifteen years, when the compressor is drawing well over nameplate and the unit is out of warranty, or when the repair list is long and the system is old anyway. At that point we put the numbers next to each other: the repair, the new system’s price after the FPL instant rebate, the financing payment, and an honest estimate of the monthly kWh difference across the nine-month cooling season. For a lot of boom-era Palm Coast homes that comparison is closer than owners expect, and the bill itself is the evidence.