Fall Furnace and Heat Pump Tune-Up Guide for Austin Homeowners

September 24, 2026 — Austin, TX

Austin winters are mild most of the time, which is exactly why home heating systems get ignored. Your furnace or heat pump sits idle from March to November, then gets asked to run hard on the first cold night of the year. That first cold snap is when we see the most no-heat calls — and many of them trace back to problems that would have been easy to catch in October.

Here is what you can check yourself this fall, what a professional heating tune-up actually covers, and the warning signs that mean it is time to call.

Heat Pump or Furnace? Know What You Have

Most Austin-area homes heat one of two ways:

• Heat pump — the same outdoor unit that cools your home in summer runs in reverse to heat it in winter. On colder nights it gets help from electric backup heat strips inside the indoor unit, often labeled “aux” or “emergency” heat on your thermostat.
• Gas furnace — burns natural gas inside the indoor unit and uses a blower to push warm air through your ducts. Your outdoor AC unit sits idle all winter.

If you are not sure which you have, look at your thermostat. An “Aux Heat” or “Em Heat” setting usually means a heat pump.

What You Can Check Yourself

• Replace the air filter. A clogged filter chokes airflow, makes the system work harder, and can cause a furnace to overheat and shut itself off.
• Test the heat before you need it. Switch the thermostat to heat on a cool morning and set it a few degrees above room temperature. You should feel warm air within a few minutes.
• Replace thermostat batteries if your thermostat uses them.
• Clear the outdoor unit (heat pumps). Rake away leaves and keep about two feet of open space around it — a heat pump pulls heat from the outdoor air and needs that airflow in winter, too.
• Open and clear your vents and returns. Furniture and rugs over vents are a common cause of cold rooms.
• Test your carbon monoxide detectors if you have a gas furnace or any gas appliance. Replace batteries and replace any detector past its expiration date.

A faint burning smell the first time the heat runs each year is normal — it is dust burning off the heat exchanger or heat strips, and it should fade within an hour or so. If it lingers or smells electrical, turn the system off and call.

What a Heating Tune-Up Includes

A thorough seasonal heating tune-up goes well beyond changing the filter. Depending on your system, a technician should check:

Gas furnaces:

• Igniter, flame sensor, and burners, including a clean, steady flame
• Heat exchanger condition, looking for cracks or corrosion
• Venting and draft, so combustion gases leave the home properly
• Safety limit switches and rollout switches
• Blower motor, capacitor, and electrical connections

Heat pumps:

• Refrigerant pressures and temperatures in heating mode
• Reversing valve operation (the part that switches between cooling and heating)
• Defrost controls, so the outdoor coil clears ice in cold, damp weather
• Backup heat strips, checked for correct amperage and staging
• Capacitor, contactor, and outdoor coil condition

Heat pumps take a beating in Central Texas because they run nearly year-round — cooling for eight months, heating for the rest. We recently replaced the compressor and control board on a Bryant heat pump at an Austin home, a reminder that the same components carry the load in both seasons.

No heat, or heat that doesn’t feel right? Call 512-992-5537 — same-day service is typically available, 7 days a week, across Austin and the surrounding area.

Warning Signs to Call a Technician

• Cold or lukewarm air from the vents with the thermostat set to heat
• The system runs constantly and never reaches the set temperature
• Short cycling — turning on and off every few minutes
• “Aux Heat” running most of the time on a heat pump, often showing up as a much higher electric bill
• A breaker that trips when the heat comes on
• Grinding, squealing, or banging noises from the indoor or outdoor unit
• A burning or electrical smell that does not fade
• A yellow, flickering furnace flame instead of a steady blue one

If a carbon monoxide alarm sounds, do not troubleshoot. Get everyone out of the house and call 911 or your gas utility from outside.

When something does go wrong, our home heating repair service covers furnaces and heat pumps of all makes and models.

Repair or Replace an Older System?

If your system is 15 years old or more and needs a major repair, it is worth pricing both options before committing. We walk through that decision in our post on when to repair or replace a failed home AC compressor — the same reasoning applies to heat pumps. If replacement makes more sense, our system replacement page explains what to expect.

Get Your Heat Ready Before the First Cold Front

Setpoint Services LLC is a licensed Texas contractor (TACLA00116720C) serving homes across the Austin area. We service all makes and models of home heating and air conditioning equipment. Call 512-992-5537 to schedule a fall heating tune-up or repair — same-day service is typically available, 7 days a week.

Serving Austin, Pflugerville, Round Rock, Georgetown, Cedar Park, Leander, Hutto, Taylor, Kyle, Buda, Jarrell, Temple, Belton, and surrounding Austin Area communities.