When the strips carry the house: a Matanzas Woods winter and the heat pump that ended it

A cold morning in Matanzas Woods

Six-thirty, mid-December, a 1998 home in the L Section near the old golf course. The thermostat reads 63 and says AUX. It’s been saying AUX since 4 a.m. Outside, the heat pump is humming but the fan isn’t turning, and the top of the cabinet has a skin of frost. Inside, the vents push air that feels like nothing. The house gains a degree every forty minutes, which is the electric backup strips doing all the work.

The FPL bill that arrives in January confirms it. The heating portion has tripled, because the strips make heat at a fraction of the efficiency the heat pump was supposed to deliver, and they’ve been running every cold night for weeks.

That’s the symptom. Here’s what we do with it.

What we check before anyone says “replace”

We’d rather fix a heat pump than sell one, so the first visit is a diagnostic, not a sales call.

• The outdoor fan. A dead fan motor or capacitor stops the outdoor coil from exchanging heat. The unit ices over and the strips take over. Cheap fix, common on 2000s equipment.
• The defrost control. Palm Coast winters put heat pumps right in the frost zone: mild, damp, 35 to 45 degrees at night. A failed defrost board or sensor lets ice build until the system quits heating.
• The reversing valve. Stuck partway, the system runs but can’t make heat.
• Refrigerant. Low charge from a coil leak starves heating mode first. On homes near the Intracoastal and the Hammock, salt corrosion is the usual leak source.
• The strips themselves. Sometimes the heat pump is fine and a sequencer has failed, so the house loses its backup.
• Compressor amps. The number that tells us whether the heart of the system has years left or weeks.

What it usually turns out to be

On a 1990s or 2004-2007 system, the Matanzas Woods call lands in one of three places.

Finding	Verdict
Fan motor, capacitor, defrost sensor, sequencer	Repair, same visit, and plan for replacement on your own schedule
Reversing valve or defrost board on a healthy compressor	Repair if the unit is under about 12 years; price both roads if older
Compressor failing, coil leaking, or R-22 refrigerant	Replace; the repair would cost a third of a new system and buy a season

The 1998 house above was in the third row: compressor pulling high amps, a corroded coil, and a refrigerant that’s no longer made. The homeowners went with a new variable-speed heat pump, and the strips haven’t run outside of a defrost cycle since.

Get a free replacement estimate

What drives the price of a new heat pump

No prices on this page; they change with equipment and with your house. What doesn’t change is what moves them.

1. Tonnage, set by the load calculation, not the old nameplate. Boom-era homes in Lehigh Woods and Indian Trails were frequently oversized by a half ton or more, and a correctly sized replacement is often smaller and more comfortable.
2. Efficiency tier. Single-stage, two-stage or variable-speed. In a town with mid-70s summer dew points, staging is the humidity-control feature, not a luxury.
3. The indoor side. A matched air handler with a new coil nearly always goes in with the condenser; mismatching loses efficiency and most warranty coverage.
4. Ductwork condition. If the attic flex duct is crushed, disconnected or undersized, which in 2005-era homes it often is, sealing or replacing it is quoted as its own line.
5. Electrical and drain. New disconnect, whip, surge protection, float switch, and on some older homes a panel upgrade.
6. Coastal protection. Coated coils and corrosion-resistant hardware for addresses east of I-95.

Against that: the FPL residential HVAC rebate, instant on qualifying high-efficiency units installed by a participating contractor. [[CONFIRM WITH JERRY: current rebate tiers and Cook’s participating status]] Financing with low monthly payments is available on new systems; terms come from the office.

How the install day goes

Old equipment out and refrigerant recovered by mid-morning. New pad or stand, condenser set, line set flushed or replaced, air handler leveled, strapped and re-drained with a float switch. Nitrogen pressure test, deep vacuum verified on a micron gauge, charge weighed in, airflow and static pressure measured, thermostat configured for heat-pump operation with the strips locked out above the right outdoor temperature. Full cycle in cooling, full cycle in heating, numbers logged, walkthrough with you, permit inspection scheduled.

When repair still wins

A heat pump under ten years old with a single failed part gets repaired. So does an older one whose cooling side is strong and whose fault is minor. We’ll put it in writing either way, and if the honest answer is “fix it and start saving for the next one,” that’s the answer you’ll get. The 2004-2007 systems across Palm Coast are reaching the end together, but not all on the same day, and yours might have a few good summers left.