Heat Pump Maintenance Before the Holidays

Heat pump maintenance before the holidays comes down to three things: a clean filter, a clear outdoor unit, and a professional maintenance visit before the first freeze. In Dallas-Fort Worth, that freeze arrives on average in late November, the week before Thanksgiving, just as the house fills with guests and the oven runs all day.

Why Schedule Heat Pump Maintenance Before the Holidays?

The timing lines up with the weather. The average first freeze at DFW Airport falls around November 21. It's often the first night your heat pump runs hard in heating mode, and a weak part it carried through summer tends to show up then.

The holidays add work too. Doors open and close for guests all day, and guest rooms that sat closed off since spring need heat again. A heat pump that's clean and correctly charged handles that without strain. ENERGY STAR recommends having a contractor check the heating system every fall. In North Texas, that same heat pump has cooled your home since spring, so it has already worked a full season by November.

There's money in it as well. The Department of Energy says a regular maintenance schedule can cut heating and cooling costs by 10 percent or more and help the equipment last longer.

What Heat Pump Maintenance Can You Do Yourself?

Most of the work that keeps a heat pump healthy between visits takes a few minutes. Start here:

• Check the air filter once a month, as ENERGY STAR recommends, and change it when it looks gray or dusty.
• Clear leaves, grass clippings and branches from around the outdoor unit. Keep about two feet open on every side.
• Don't cover the outdoor unit for winter. A heat pump runs in heating mode and needs airflow all season.
• Keep holiday decorations, extension cords and stored boxes away from the unit and its electrical disconnect.
• Open supply vents in every room, including guest rooms you closed off. Closed vents restrict airflow.
• Test the thermostat in heat mode before company arrives, and replace its batteries if it uses them.

If you put up outdoor lights, route the cords so they don't sit on the unit's top grille or pinch the refrigerant lines.

What Does a Professional Heat Pump Maintenance Visit Include?

A professional visit handles what you can't safely do yourself. On Time Experts' heat pump maintenance includes system cleaning, refrigerant checks, electrical connection checks and a thermostat test. A thorough visit typically covers:

Ask your technician which of these the visit covers, and ask to see anything that needs attention. Learn more about heat pump services from On Time Experts, including repair and replacement if your system is near the end of its life.

Is It Normal for a Heat Pump to Steam or Make Noise in Cold Weather?

Yes, within limits. When frost builds on the outdoor coil, the heat pump runs a defrost cycle. The outdoor fan stops, the system briefly switches to cooling to warm the coil, and you may see steam rising from the unit and hear a whoosh when it switches back. That's normal and usually lasts a few minutes.

What isn't normal: thick ice that covers the whole coil and stays for hours, ice on the top of the unit, or a defrost cycle that runs constantly. Those point to a problem with airflow, refrigerant or the defrost controls, and they're worth a service call.

When Should You Use Emergency Heat?

Only when the heat pump itself has stopped working. Many heat pump systems in North Texas have electric heat strips that switch on automatically when the heat pump needs help on very cold nights. That's auxiliary heat, and it's normal to see "AUX" on the thermostat during a freeze.

"EM heat" or emergency heat is different. It turns off the heat pump and runs only the electric strips, which cost much more to operate. Use it if the outdoor unit is damaged or iced over and you're waiting for a repair, then switch back.

Should You Turn Down Your Heat Pump When You Travel for the Holidays?

A small setback is fine, but large swings can backfire. When you come home and raise the temperature several degrees at once, the system may lean on its electric backup heat to catch up. The Department of Energy advises against setting back a heat pump unless you have a smart or programmable thermostat designed for heat pumps.

If you're leaving town, a setting in the low 60s keeps pipes and pets safe without much catch-up. A smart thermostat lets you raise it a few hours before you return. For a deeper fall checklist, see our guide to preparing your heat pump for Texas fall weather.

Frequently Asked Questions

How often should a heat pump be serviced?

Twice a year in North Texas: once in spring before cooling season and once in fall before heating season. A heat pump does both jobs here, so it runs more months than a furnace or an air conditioner alone.

Why is my heat pump blowing cool air?

Heat pump air often feels cooler than furnace air because it comes out at a lower temperature, even when it's heating correctly. If the house can't reach the set temperature, check the filter and thermostat setting, then call for service.

Why is my heat pump outdoor unit icing up?

Light frost is normal and the defrost cycle clears it. Heavy ice that doesn't clear can mean low refrigerant, a blocked coil, a failed fan motor or a defrost control problem. Turn the system to emergency heat and call a technician.

How long does a heat pump last?

Many heat pumps last 10 to 15 years, depending on maintenance and how hard they run. DOE suggests looking at replacement options once a heat pump or air conditioner is more than 10 years old.

Is a maintenance plan worth it for a heat pump?

It can be, since a heat pump needs two visits a year. The On Time Experts Front of the Line Family plan includes two system maintenance visits a year, one for heating and one for cooling.

Get Your Heat Pump Ready for the Holidays

On Time Experts services heat pumps across Dallas-Fort Worth, from Fort Worth to Rockwall. Book a maintenance visit before the first freeze, see current offers on our specials page, or call 281-694-7946.

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