No two heating systems break the same way, and in St. Augustine homes the first question on any no-heat call is what kind of equipment we are dealing with. Gas furnaces most often stall on an oxidized flame sensor. The burners fire, the sensor fails to confirm the flame, and after three attempts the control board closes the gas valve and locks the system out. Cracked hot surface igniters, sticking pressure switches, plugged condensate traps on high-efficiency units, and tired blower motors round out the usual list. Heat pumps have their own failure patterns. A defrost cycle that underperforms lets ice build up on the outdoor coil, a bad reversing valve traps the system in cooling mode, and a dead outdoor unit hands the whole load to the electric backup strips, which cost several times as much to run.
Our most requested repair is Furnace Repair. Start there if your system isn't running right.
Warning Signs for Heating Repair
The sooner you notice these red flags, the easier and cheaper the fix. Watch for these telltale signs:
- Booming or banging at ignition, a sign of delayed burner light-off
- Some rooms warm while others stay stubbornly cold
- A rotten-egg, burning, or musty smell once the heat kicks on
- An outdoor heat pump coil that stays iced over
- No warm air at the registers even with the heat turned up
- Clicking and failed ignition attempts before the furnace gives up
- Heating bills spiking while comfort keeps falling
- The system starting and stopping every few minutes without warming the house
Don't Wait for a Total Failure
Left unchecked, even a small fault or temperature swing often signals a system working its way toward a breakdown. If you notice any of these signs, call (904) 243-4271 for a prompt inspection.
