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Home comfort tips · November 9, 2026

Before you turn on the heat.

A checklist for Sherman and Plano homeowners.

Before colder weather settles into Sherman, Plano and surrounding areas, give your heating system a little attention. A few basic checks can help you spot a problem before you depend on the heat every day.

These steps are for routine homeowner care. Leave electrical work, gas components, refrigerant and internal repairs to a qualified HVAC professional.

1. Check your air filter

Inspect the filter and follow your equipment manufacturer's replacement or cleaning instructions. Use the correct size and a filter type approved for your system. A clogged filter can restrict airflow and make the equipment work harder.

Check it regularly rather than relying only on a calendar reminder. Pets, dust and frequent system use can affect how quickly it gets dirty.

2. Give the air room to move

Walk through the house and look for furniture, rugs or curtains covering supply registers or return grilles. Keep those openings clear.

If some rooms remain uncomfortable while others reach the thermostat setting, make a note of which rooms are affected. That information helps a technician investigate airflow and comfort problems.

3. Review the thermostat

Make sure the thermostat is in heating mode and review any programmed schedule. Replace batteries if your model uses them and indicates they are low.

For heat pumps, follow the manufacturer's thermostat guidance. Large temperature changes can bring on backup heat in some systems. If you are unsure how your controls work, ask during a service visit.

4. Pay attention to how the system runs

Note repeated starting and stopping, unusual noises, weak airflow or a home that does not reach the set temperature. These symptoms do not identify a single cause, but they are useful details to share when requesting service.

Avoid repeatedly resetting a system that shuts down. Safety controls may be responding to a problem that needs diagnosis.

5. Know when to stop

If you smell gas, leave the building immediately without operating switches or using a phone inside. From a safe location, contact your gas utility or emergency services. If a carbon monoxide alarm sounds, move everyone outside and call emergency services. Do not wait for an HVAC appointment.

For routine maintenance, follow the equipment manual and arrange professional care appropriate to your system.

Heating help in Sherman and Plano

Advanced Cooling provides heating repair, replacement and maintenance for furnaces and heat pumps. With locations in Sherman and Plano, our team serves the surrounding areas, including Denison and Pottsboro.

Tell us what your system is doing, which rooms are uncomfortable and any messages on the thermostat. We can help you take the next step.

Call 903-465-6554 or request service. Learn about Comfort Club maintenance for ongoing system care.

Your Comfort, Our Priority

Further reading: ENERGY STAR's maintenance checklist and the U.S. Department of Energy's homeowner HVAC guide.

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