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๐Ÿ”ฅ Furnace Not Heating? Georgetown TX Troubleshooting Guide

Step-by-step troubleshooting for a Georgetown TX furnace that's not heating. Common causes and when to call a technician.

Georgetown Furnace Issues: Different From Northern States

Georgetown's heating needs are genuine but concentrated, typically 20-30 days per year below 40ยฐF, with occasional hard freezes in January and February. Because Georgetown furnaces sit idle for 6-8 months between heating seasons, the first cold night of fall is the peak time for failure discovery. Hot surface igniters, in particular, degrade during storage and often fail at first ignition attempt of the season.

Step 1: Check the Thermostat

First, verify your thermostat is set to HEAT (not COOL or AUTO), and the setpoint is above current room temperature. Check the battery, many thermostats display "low battery" warnings that homeowners dismiss. A dead thermostat battery stops the entire system.

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Furnace not heating in Georgetown?

Step 2: Check the Filter

A severely clogged filter restricts airflow and can cause the furnace to overheat and trigger the high-limit switch, shutting the system down. Replace the filter if it's visibly gray or compressed. Run the system again, if the filter was the issue, it may resume normal operation.

Step 3: Check the Breaker and Power Switch

Confirm the furnace breaker hasn't tripped in your main panel. Also check the furnace's local power switch (usually a wall switch near the unit that looks like a light switch). It's easy to accidentally flip this during storage or cleaning.

Step 4: Check Your Gas Supply

If your furnace is gas-fired, confirm the gas supply valve (usually a lever or ball valve on the gas line near the furnace) is open, parallel to the pipe means open, perpendicular means closed. If you smell gas, don't operate any switches or lights, leave the building and call your gas utility immediately.

Step 5: Try a System Reset

Many modern furnaces have a reset button on the control board. Turn the furnace off at the power switch, wait 30 seconds, and turn it back on. This clears a high-limit fault if the filter was the issue. If the system trips again within a few minutes, there's an underlying cause that needs professional diagnosis.

When to Call ProAir Georgetown

Call us if the system doesn't start after the above steps, or if it starts and then stops within a few minutes. The most common professional repairs:

  • Hot surface igniter replacement ($95-$150), most common Georgetown heating call
  • Flame sensor cleaning or replacement ($85-$130), carbon buildup prevents flame detection
  • Inducer motor failure ($200-$400), prevents combustion air movement
  • Control board replacement ($250-$450), less common but definitive

โš ๏ธ Carbon Monoxide Warning: If your CO detector goes off with the furnace running, turn off the furnace immediately, leave the building, and call 911. A cracked heat exchanger is the most common HVAC-related CO source. We perform heat exchanger inspections as part of every heating tune-up.

Need heating repair in Georgetown TX? Visit our Georgetown Furnace Repair page or call (512) 798-8094, same-day service available for most Georgetown heating calls.

Frequently Asked Questions

Georgetown winters are short but sharp, temperatures can drop to the 20s overnight with little warning. Common furnace failure causes: failed hot surface ignitor (most common), dirty flame sensor, failed control board, tripped high-limit switch (caused by dirty filter or blocked airflow), gas valve issue, or draft inducer failure. Most are diagnosed in one service visit.
Common Georgetown furnace repairs: hot surface ignitor replacement $150-$250, flame sensor cleaning/replacement $85-$150, control board replacement $300-$650, gas valve replacement $300-$600, draft inducer motor $300-$500. The diagnostic fee is determined based on the specific service needed and your service area, and is applied toward the repair cost if you proceed. Emergency after-hours service adds $75-$125.
First: check your thermostat, ensure it's set to HEAT and the temperature is above current indoor temp. Second: check your air filter, a clogged filter trips the high-limit switch. Third: check your circuit breaker. Fourth: check your gas supply (other gas appliances working?). If none of these fix it, call for service. During Georgetown cold snaps we prioritize no-heat calls for vulnerable residents.
Space heaters are acceptable as temporary supplemental heat in Georgetown's mild winters but require caution: keep them away from flammable materials, never leave unattended, and don't use in bathrooms or near water. For extended outages in extreme cold (below 30ยฐF), prioritize repair over relying on space heaters for whole-home heating.

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