No two heating systems break the same way, and in Philadelphia homes the first question on any no-heat call is what kind of equipment we are dealing with. 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 falls short lets ice build up on the outdoor coil, a bad reversing valve leaves the system stuck 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.
Most of our service calls are for Furnace Repair. Start there if your system isn't running right.
Warning Signs for Heating Repair
Catching these issues early helps you avoid costly problems. Here are the most common indicators that it's time to call a professional:
- Clicking and failed ignition attempts before the furnace gives up
- Some rooms warm while others stay stubbornly cold
- The thermostat calls for heat but the vents blow cold air or nothing
- A heat pump's outdoor unit encased in frost or ice
- A loud boom when the burners light, which points to delayed ignition
- A rotten-egg, burning, or musty smell once the heat kicks on
- Higher heating bills with less comfort to show for them
- Frequent on-off cycles that never bring rooms up to temperature
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. At the first hint of a problem, call (215) 261-4753 for a fast inspection.
