A St. Augustine heating call, from the 6 a.m. phone ring to warm vents

The signs that start the clock

A St. Augustine heating failure announces itself in one of a few ways. The thermostat is set to 68 and the house is 61 at sunrise. The vents blow, but what comes out is room temperature. The outdoor unit is coated in ice and hasn’t moved in an hour. There’s a burnt-dust smell on the first cold night, which is normal for a minute and not normal for an hour. Or nothing is wrong with the heat at all and the FPL bill for January arrives looking like August’s, which means the electric strips have been carrying a heat pump that quit weeks ago.

Any of those is a reason to call. Here is what happens after you do.

From the call to the finished job

6:05 a.m. The phone is answered by a person. You give the neighborhood, the symptom and whether anyone in the house is elderly or unwell; the quarter of St. Augustine’s residents past 65 move to the front of the morning. The dispatcher checks the route from the Palm Coast headquarters, about 39 minutes to downtown on a frosty, empty morning.

6:50 a.m. The technician arrives. First stop is the thermostat: mode, setpoint, whether it’s calling, whether the display shows auxiliary or emergency heat. Second stop is the air handler, where the filter gets pulled and the blower is confirmed running. Third stop is the outdoor unit, if it’s a heat pump: is the compressor running, is the reversing valve in heating position, is the coil iced over.

7:20 a.m. Diagnosis. In this market it’s one of a short list: a failed defrost board that let the outdoor coil turn into a block of ice, a reversing valve stuck in cooling, a burned heat strip or sequencer, a capacitor that gave up on the first cold start of the year, a low refrigerant charge that nobody noticed all summer because the system still sort of cooled. For gas furnaces on a Peoples Gas line, it’s an ignitor, a flame sensor or a pressure switch far more often than anything serious.

7:35 a.m. The price. Written, explained, and your decision before any part comes off the truck.

8:30 a.m. Most of these repairs are finished by now. The system runs through a full heating cycle while the technician measures the temperature rise across the air handler and the amp draw on the strips to make sure they’re staging correctly.

8:45 a.m. Walkthrough: what failed, why, and whether anything else is close behind. A system near the end gets an honest word and a free replacement estimate if you want one.

What every cold week of waiting costs

Heating problems here are easy to postpone because the cold never lasts. Three things happen while you wait:

1. The strips carry the load. A heat pump with a failed compressor or a stuck reversing valve will often keep the house warm on electric strips alone, and the house feels fine. The bill does not. Strip heat costs a multiple of what the heat pump costs for the same warmth, and in a cold January that multiple shows up on an FPL statement in February.
2. Ice does damage. A heat pump whose defrost cycle has failed builds ice on the outdoor coil until the fan blades hit it. Fan motors and blades are the next repair.
3. Small faults grow. A capacitor that struggles on cold starts eventually takes the compressor with it. A flame sensor that needs cleaning becomes a furnace that won’t light at all on the coldest night of the year, which is when every heating contractor in St. Johns County is already booked.

What the repair involves, by system type

System	Typical St. Augustine failure	What the fix is
Heat pump	Defrost control, reversing valve, capacitor, low charge	Board or valve replacement; leak repair and recharge
Heat pump with strips	Burned element, failed sequencer, breaker tripping	Strip kit or sequencer replacement; wiring and breaker check
Electric furnace	Elements, limit switches, blower	Same parts as above, plus airflow correction
Gas furnace (Peoples Gas)	Ignitor, flame sensor, pressure switch, inducer	Component replacement; combustion check; CO test
Dual-fuel	Changeover setpoint wrong, furnace not staging	Control reconfiguration, then the furnace list above
Ductless mini-split	Outdoor unit iced, drain frozen, board fault	Defrost, sensor or board; drain reroute

We repair every major brand. Lennox is what we install when a repair stops making sense.

Call for heating service

Keeping it from happening next January

The reason heating fails in St. Augustine is that it sits unused from March to December and then gets asked to work on a 35-degree morning. The prevention is simple and mostly scheduled:

• A fall visit. The second tune-up of the year, in November, is where we run the heat, test the strips under load, check the defrost cycle and clean a gas furnace’s burners and sensor before the first cold front.
• A thermostat set right. The auxiliary heat lockout and the changeover settings on a dual-fuel system determine whether the strips or the furnace run when they shouldn’t. Most are left at factory defaults.
• A clear outdoor coil. A heat pump in heating mode needs airflow through the outdoor coil just as much as in cooling. Oak leaves piled against a Fullerwood Park unit in December are a defrost problem waiting to happen.
• A filter you remember. Low airflow trips limit switches and overheats strips. The filter is the cheapest heating repair there is.
• A flood check. Davis Shores and bayfront units that took saltwater in a fall king tide should be inspected before the first cold front; October corrosion shows up as a dead defrost board in January.

Cook’s maintenance agreements cover the fall and spring visits with priority scheduling; the current inclusions and pricing are confirmed by the office. [[CONFIRM WITH JERRY]]