How to Prepare Your Heat Pump for Winter in Spotsylvania and Goochland, VA: 7 Steps for Reliable Heating

Are you ready for the first freeze in Spotsylvania or Goochland?

Late fall is the right time to prepare your heat pump. Heat pumps heat your home differently than furnaces. Instead of creating heat by burning fuel, they move available heat from outdoor air into your home. As outdoor temperatures move through the 30s, a heat pump may work harder and lose heating efficiency. Poor airflow, low refrigerant, dirty coils, or a faulty defrost system can make that performance drop even further.

You can handle several basic checks yourself. Other issues require professional testing. Use these seven steps to protect your comfort, manage energy use, and reduce the chance of a winter breakdown.

“A simple check before the first freeze can help you avoid a much bigger comfort problem later in the season.”- Manuel, owner of A-Advanced Home Services

1. Check your thermostat settings and heating schedule

Would you like your heat pump to run efficiently without relying too heavily on auxiliary heat?

Start by checking the thermostat before cold weather arrives.

• Set the system to HEAT, not AUTO.
• Set the indoor fan to AUTO, not ON.
• Replace thermostat batteries if your model uses them.
• Use a steady temperature whenever possible.
• Keep overnight setbacks modest, usually around 2–3 degrees.

Large temperature setbacks can cause your system to run for a long time during recovery. They may also trigger AUX HEAT, which often uses electric resistance heat. Auxiliary heat can cost more to operate than the heat pump itself.

Run a test cycle. Your system should start smoothly, deliver warm air, and operate in a steady cycle. A heat pump may deliver air that feels less hot than furnace air. That is normal. The system is designed to provide longer, consistent heating rather than short bursts of very hot air.

If your thermostat shows AUX HEAT frequently during mild weather, schedule a professional evaluation.

2. Replace the filter and clear indoor airflow

A dirty filter makes your heat pump work harder. It can reduce comfort, increase operating costs, and contribute to short cycling.

Replace your filter with the exact size recommended by the existing filter or equipment manufacturer.

• Check the filter monthly during heating season.
• Replace disposable filters when they look dirty.
• Clean washable filters according to the manufacturer’s instructions.
• Keep supply registers open.
• Keep return grilles clear of furniture, curtains, and rugs.

Avoid choosing a filter with a higher efficiency rating unless your system can handle it. A filter that is too restrictive may reduce airflow.

A professional HVAC tune-up can also include airflow testing, thermostat checks, electrical inspections, and overall performance testing. These checks help identify problems before your heat pump must operate during the coldest weather.

3. Give the outdoor unit room to breathe and watch the defrost cycle

Your outdoor heat pump needs open space to move air through the coil. Walk around the unit and remove leaves, grass, sticks, and other debris.

Maintain at least 18–24 inches of clearance around the sides whenever possible. Trim back shrubs and grass that block the coil. Also check for roof runoff or dripping gutters that could freeze on the unit.

Do not cover a heat pump with a tight winter cover. Your system needs to operate throughout the winter, and a cover can trap moisture or restrict airflow.

What is a normal defrost cycle?

In cold, damp weather, frost can form on the outdoor coil. The heat pump will automatically enter a defrost cycle to remove it.

During defrost, you may notice:

• The outdoor fan stops temporarily.
• The system makes a different operating sound.
• Steam rises from the outdoor unit.
• Auxiliary heat turns on briefly to maintain indoor comfort.

These signs are usually normal.

Thick ice that remains on the coil is not normal. Do not chip at it with a shovel or sharp tool. If the unit repeatedly freezes over or cannot clear itself, turn off the system and request service.

4. Test auxiliary and emergency heat before the first freeze

Would you know what to do if your outdoor unit stopped working during a cold night?

Your thermostat may include AUX HEAT and EMERGENCY HEAT settings. These settings are not the same.

• Auxiliary heat operates automatically when the heat pump needs help maintaining the indoor temperature.
• Emergency heat disables the outdoor heat pump and uses the backup heat source alone.

Your backup heat may be electric heat strips or a furnace in a dual-fuel system. Test the system before the first freeze, but avoid leaving Emergency Heat on as a normal operating setting. It can cost more and may not be necessary during ordinary winter weather.

Call a professional if:

• Emergency Heat does not produce warm air.
• The thermostat displays AUX HEAT constantly.
• The indoor temperature falls even while the system runs.
• You smell burning, see smoke, or hear unusual electrical buzzing.
• The outdoor unit is frozen solid.

A planned check is safer and more convenient than discovering a backup heat problem during a winter outage.

5. Watch for short cycling

Short cycling occurs when your heat pump turns on and off repeatedly instead of completing longer, steady cycles. It can increase wear and prevent your home from reaching a comfortable temperature.

First, check the simple causes:

• Dirty air filter.
• Blocked supply or return vents.
• Debris around the outdoor unit.
• Incorrect thermostat mode.
• Weak thermostat batteries.
• Thermostat located near a draft or heat source.

If the problem continues, the cause may require professional diagnosis. Possible issues include a refrigerant problem, a failing sensor, a control board fault, an oversized system, or a ductwork issue.

Do not keep resetting the thermostat to force the system to run. That may hide the problem while adding stress to the equipment.

6. Look for signs of refrigerant or reversing-valve trouble

A heat pump uses refrigerant to move heat. The reversing valve changes the direction of refrigerant flow so the same system can cool your home in summer and heat it in winter.

These parts require professional testing. You should not attempt to add refrigerant or repair a reversing valve yourself.

Call for service if you notice:

• Cool air from the vents when the system is set to HEAT.
• Ice building up on the outdoor coil.
• Long run times with little temperature improvement.
• Uneven heating between rooms.
• Hissing or bubbling sounds near refrigerant lines.
• Short cycling that continues after you replace the filter.
• A system that cools correctly but will not heat.

Low refrigerant can reduce heating capacity and contribute to icing. A reversing valve that is stuck or malfunctioning may prevent the system from switching properly between heating and cooling.

A professional technician can check refrigerant pressures, inspect for leaks, test controls, and verify the reversing valve.

7. Know when to keep running and when to call a professional

Some heat pump behavior is normal. Other behavior indicates a problem that should not wait.

You can usually keep running	Call an HVAC professional
Brief defrost cycles	Thick ice that does not clear
Steam during defrost	Burning smell or electrical odor
Warm air that feels less hot than furnace air	Cool air while in HEAT mode
Longer cycles during very cold weather	Repeated short cycling
Brief AUX HEAT during defrost	AUX HEAT running constantly
A small amount of frost that clears	Outdoor fan not operating

If your system is failing or your home is losing heat, use A-Advanced Home Services’ 24/7 emergency service. Our technicians service all brands of HVAC equipment and can diagnose heating problems in Spotsylvania, Goochland, and surrounding Central Virginia communities.

Our Solution: Schedule a late-fall heat pump tune-up

Are you interested in preventing a winter problem instead of reacting to one?

A professional maintenance visit can include:

• Thermostat and operating-cycle checks.
• Filter and airflow inspection.
• Electrical connection testing.
• Refrigerant and pressure checks.
• Defrost-cycle verification.
• Backup heat testing.
• Condensate drain inspection.
• Coil and blower evaluation.
• Overall heating performance testing.

A-Advanced Home Services offers seasonal HVAC tune-ups and service agreements designed to keep your system efficient throughout the year. Regular visits can help lower utility bills, catch worn components earlier, and reduce unexpected repair needs. Maintenance plans include flexible options, including Bronze, Silver, Gold, and Platinum levels.

As a Trane dealer, we can also help when your heat pump needs replacement or when you want to compare higher-efficiency equipment. Financing options are available for qualifying customers. We service all brands, not just Trane.

Senior homeowners can ask about our 10% senior discount on qualifying services.

Need HVAC repair in Spotsylvania, VA or Goochland, VA?

If you search for hvac repair Spotsylvania va or hvac repair Goochland va, choose a contractor who can work on your specific system and explain the problem clearly. A-Advanced Home Services has earned a reputation for doing the job right the first time. Our technicians are known for being knowledgeable, professional, and respectful of your home.

Call 888-281-2243 to schedule a heat pump tune-up, heating service, or repair. For urgent heating problems, our emergency HVAC team is available 24/7.

A-Advanced Home Services LLC
Virginia Contractor License: VA#2705106822