When the FPL bill says something the thermostat won't

Start with the bill, not the thermostat

Florida Power & Light serves the city of St. Augustine and most of St. Johns County, and an FPL statement is the earliest warning most homeowners get. Cooling is the biggest line in a summer bill here; a house that normally runs its system eight or ten hours a day will run it fourteen when something is wrong, and the thermostat will still read 76.

The pattern we see most: the bill climbs twenty or thirty percent over two months, the house feels slightly stickier than usual, and the outdoor unit seems to run constantly. By the time the air actually goes warm, the system has often been struggling for weeks. If you catch it at the bill stage, the repair is almost always smaller.

What this page is not about

This is not the page for a system that has died at nineteen years old with a seized compressor; that’s a replacement conversation and we have a separate page for it. It is not a tune-up, which is scheduled, preventive and done when nothing is wrong. And it is not a refrigerant top-off sold as a fix. Adding gas to a leaking system and leaving is a repeat visit by September, and we don’t do it.

What a repair call actually covers

A repair is a diagnosed fault, corrected, with the system tested afterward. In St. Augustine that most often means:

• Electrical parts: capacitors, contactors, relays, fan motors, the occasional control board fried by one of our summer lightning storms.
• Airflow faults: blower motors, collapsed or disconnected flex duct in an attic, a return that has been starved since the house was built.
• Refrigerant faults: locating and repairing the leak, then charging to specification.
• Drainage faults: clogged condensate lines, failed float switches, cracked pans, all made worse by a wet season that runs May to October.
• Corrosion damage: coils, cabinets and fittings on units within a mile of the ocean or the Matanzas, where salt air works faster than anywhere inland.

Every brand with a nameplate is fair game. We’re a Lennox dealer, but the repair truck sees Carrier, Bryant, Trane, Rheem, Goodman and whatever a previous owner installed.

The visit, in order

1. Listen. What changed, when, and what the bill did. Homeowners usually know more than they think.
2. Thermostat and filter. Thirty seconds, and it rules out the embarrassing causes first.
3. Outdoor unit under load. Compressor and fan amp draw against the nameplate, capacitor microfarads, contactor condition, coil cleanliness. On Vilano and Anastasia Island addresses we also look hard at corrosion on the coil fins and the line-set fittings.
4. Indoor unit. Blower amperage, evaporator coil condition, temperature split across the coil, condensate drain flow, float switch function.
5. Pressures and temperatures. Suction and head pressure, superheat and subcooling. These numbers tell us whether the charge is right and whether the metering device and compressor are healthy.
6. Airflow. Static pressure across the air handler, which exposes crushed duct, undersized returns and dirty coils that a visual check misses.
7. The explanation. What’s wrong, in plain words, with the measurement that proves it. Then the price. Then your decision.
8. The repair and the retest. Nothing leaves our hands until the numbers in step 5 come back to specification.

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Why the bill goes up before the air goes warm

A weak capacitor lets the compressor start hard and run hot. A dirty outdoor coil raises head pressure, which raises amp draw. A low charge drops capacity, so the system runs longer to do the same job. A blower running against a collapsed duct moves less air across the coil, so the coil can’t give up its cold. In every case the system is consuming more power and delivering less, and FPL bills you for the consumption, not the delivery.

That is why we measure before we replace anything. A system that “just needed gas” with no leak found is a system that will need gas again.

Getting the house ready before we arrive

A few minutes of preparation shortens the visit:

• Clear a path to the air handler, whether it’s in a garage, a hall closet or an attic hatch. Historic-district houses often have the unit in a tight closet behind a door that hasn’t been opened since the last repair.
• Trim back anything crowding the outdoor unit. Oleander, palmetto and the oak debris that drops from February through April all choke a condenser.
• Have the last two or three FPL bills handy, on paper or on your phone. The month-over-month pattern is genuinely useful.
• Note any sounds, smells or puddles and when they started. “It started after the big storm” or “since the pressure washers were here” is often the whole story.
• If the system is tripping the breaker, leave it off. Repeated resets can turn a small repair into a compressor.
• Keep pets somewhere comfortable; we’ll be in and out of the house several times.

Where we come from and how fast

Cook’s dispatches to St. Augustine from the Palm Coast headquarters, roughly 24 miles and 39 minutes on a clear run up US 1 or I-95. There is no after-hours fee: a Sunday evening call in Fullerwood Park costs what a Tuesday morning call costs. Emergency service is available around the clock because a house with no cooling in a St. Augustine August is a health problem, not an inconvenience, especially for the quarter of the city’s residents who are past 65.

Tell the dispatcher what the bill did and what the house is doing. The rest is measurement.