Heat pump or furnace? That is the first thing that matters when the heat quits in Florence, SC, because the two fail in completely different ways. Heat pumps tend to ice over when defrost stops working, get stuck in cooling when a reversing valve fails, or quietly lean on the electric backup strips, at several times the normal operating cost, when the outdoor unit dies. Gas furnaces typically come down to the flame sensor: once oxide coats it, the burners light but the flame cannot be proven, so the board cuts the gas and locks out after three tries. After that, the usual suspects are cracked hot surface igniters, stuck pressure switches, clogged condensate traps on high-efficiency models, and blower motors at the end of their life.
Fault codes are where our diagnosis starts, not where it ends. On every no-heat call, Florence HVAC backs up the board's story with measurements: flame signal read in microamps, igniter resistance checked, the pressure switch tested against real inducer draft, capacitors and motors metered, and, on heat pumps, refrigerant charge and defrost operation verified. Any visit that touches the gas side also covers the safety basics. We leak-test the connections, look over the heat exchanger, and confirm the flue is drafting, since no heating repair is finished until it has been proven safe.
We service gas and electric furnaces, heat pumps, air handlers, boilers, and ductless systems across all major brands, with igniters, flame sensors, capacitors, inducer motors, and blower motors stocked on the truck, so most homes have heat again the same visit. If your equipment is at the end of the road, we say so honestly and walk you through the options with real numbers. For fast heating repair anywhere in Florence, call (843) 268-6987 and we will get the warm air moving today.
Most of our service calls are for Furnace Repair in Florence. If something has stopped working, start there.
Signs You Need Heating Repair in Florence
Spotting the early warning signs gives you the chance to act before the situation spirals into something far more expensive. These are the signals our technicians see most often when a problem is underway:
- Cold rooms in one part of the house while others are comfortable
- Frequent on-off cycles that never bring rooms up to temperature
- Heating bills spiking while comfort keeps falling
- An outdoor heat pump coil that stays iced over
- Burning, musty, or rotten-egg odors when the heat runs
- A furnace that tries to light, clicks, and then quits
- No warm air at the registers even with the heat turned up
- Booming or banging at ignition, a sign of delayed burner light-off
Early Action Saves Money
What seems like a minor issue today can take out a compressor or heat exchanger tomorrow. Don't wait, get Florence HVAC on the phone at (843) 268-6987 and we'll take a look right away.
Heating Repair FAQ
Why Hire a Professional for Heating Repair?
Heating repair carries more risk than any other job in home comfort work because combustion is involved. A furnace that lights late booms gas vapor inside the heat exchanger and stresses the metal; a heat exchanger that cracks can pass combustion gases into the supply air; a flue that has stopped drafting sends carbon monoxide into the house instead of out of it, and none of these announce themselves in ways an untrained eye can catch. The diagnostic terrain is genuinely tricky too: a furnace that short-cycles might have a failing limit switch, or it might be protecting itself from a clogged filter, and cleaning a flame sensor without asking why it fouled leaves the next lockout already scheduled.
Our experienced technicians bring instruments and judgment to both problems. Flame signal is measured, not assumed; heat exchangers are inspected; draft is verified at the flue; temperature rise is checked against the data plate so the blower speed matches the fire. On heat pumps we test defrost boards, sensors, and reversing valves rather than condemning the compressor on a hunch, and we check whether the backup heat strips have been quietly running your bill up for weeks. The repair you get is one that has been proven safe and correct under a full cycle, which is exactly what you want from anyone touching the machine that keeps your family warm.
Our Heating Repair Process
We work through a clear, repeatable process so nothing gets overlooked on your property. Here's a look at each step our Florence HVAC team takes:
Diagnosis & Safety Inspection
Every visit begins with measurements, not guesses: flame signal, igniter resistance, pressure switch response, and motor and capacitor health, plus refrigerant charge and defrost on heat pumps. Gas connections are leak-tested as standard.
Findings & Upfront Pricing
We show you what failed and why, and give a firm price before work begins. If a cracked heat exchanger or dead compressor changes the math toward replacement, we say so plainly.
The Repair Itself
Igniters, flame sensors, pressure switches, capacitors, and motors ride on our trucks, so most heating repairs are completed the same visit and the house starts warming before we leave.
Complete System Check
We do not call it done until the system proves itself. That means full cycles, temperature rise checked against the data plate, combustion and draft confirmed on gas equipment, and every safety control verified.
Want a Professional Opinion?
Call Florence HVAC to discuss your heating repair needs with an experienced technician.
Call (843) 268-6987 TodayMaintenance Tips for Heating Repair
A few simple habits now, like regular filter changes and seasonal tune-ups, can add years to your system's life. Start with these practical measures our team relies on:
- Make sure every level has a working carbon monoxide detector, and test it monthly
- Clear snow, leaves, and overgrown shrubs from around the heat pump so defrost works properly
- Call about booming at startup or new rattles right away, while the fix is still inexpensive
- Move solvents, paints, and pool or laundry chemicals away from the furnace to protect the burners from corrosive vapor
- Avoid crowding the furnace with storage, which can starve the burners of air
- Book a fall tune-up so worn parts are caught before the first cold night
- Change the filter monthly in heating season; starved airflow trips limit switches and cracks exchangers early
Should You DIY or Call a Pro?
Some simple checks are suitable for DIY, but most heating and cooling repairs benefit from professional tools, training, and experience. Here's a comparison:
| Factor | DIY Attempt | Professional Service |
|---|---|---|
| CO Safety | An unseen hazard never gets tested | Heat exchanger and draft verified |
| Diagnosis | Parts swapped on a hunch | Every component tested with a meter |
| Gas Safety | Small leaks slip by undetected | Every joint checked with a leak detector |
| Heat Pumps | Defrost faults mistaken for dead units | Defrost controls and reversing valve tested |
| Underlying Cause | Sensor cleaned, cause ignored | The reason it failed tracked down |
| Verification | It lit once, good enough | Temperature rise measured over full cycles |
Talk to a Heating Repair Expert
Every day you wait puts more strain on a struggling unit. Get Florence HVAC on the job today.
Call (843) 268-6987 NowHeating Repair Near Florence
We serve Florence and its neighboring communities for heating repair, from quick same-day repairs to planned installs.