AUX heat seems to be doing all the work.
Backup heating is normal during colder weather. But if it runs for hours on mild days, the outdoor equipment may not be carrying its share of the load.
Why DFW Heat Pumps Need Attention
One week you're cooling the house, and the next you're turning up the heat. That's North Texas weather, and your heat pump has to keep up with both. The same equipment handles heating and cooling, so problems with the outdoor fan, refrigerant circuit, or reversing valve can affect comfort in either season.
At CityLine Air Conditioning, we repair heat pumps that struggle to heat, cool, or switch between the two. Our technicians check the indoor and outdoor equipment, test the electrical components and refrigerant system, and track down what's affecting performance. Once we've found the problem, we'll explain the repair options and provide a written estimate before any work begins.
- 2 Operating ModesHeating and cooling from the same heat pump, with components that work across both seasons.
- 32°Fisn't a strict cutoff for frost. Moisture can freeze on the outdoor coil even when the air is slightly warmer.
- $89for a diagnostic visit, deducted from the bill when an approved repair is completed during the same appointment.
- 365 Daysof money-back protection on qualifying repairs. Give us the opportunity to correct the issue first, subject to our guarantee terms.
Signs Your DFW Heat Pump Needs Repair
A heat pump doesn't always stop working when something goes wrong. Sometimes it keeps running, but the temperature indoors tells a different story. Here are six warning signs worth paying attention to.
Ice keeps building up outside.
A little frost is expected in winter. Thick ice that remains after defrost cycles, however, could point to an airflow problem or a faulty defrost control.
The vents blow lukewarm air, but rooms stay cold.
Heat pumps deliver gentler warmth than gas furnaces. Still, the temperature should gradually rise. If it doesn't, something may be limiting heating performance.
The house struggles to cool on hot afternoons.
The thermostat is set to 72°F, but indoor temperatures keep climbing. Dirty coils, restricted airflow, or a refrigerant issue could be preventing proper cooling.
Your winter electricity bill suddenly jumps.
If electric backup heating is running more often than necessary, energy use can climb quickly. A struggling compressor or another performance issue may be responsible.
The breaker trips or there's a burning electrical smell.
Don't keep resetting the breaker or restarting the equipment. Switch it off and arrange a professional inspection before using it again.
Wondering whether to repair or replace? Smaller component failures may be worth fixing, while expensive problems on an aging unit could make heat pump installation worth considering. For dual-fuel systems with a faulty gas furnace, explore furnace repair. If the home has lost heat during freezing weather, request emergency heating repair.
How Much Does Heat Pump Repair Cost in DFW?
A standard heat pump repair visit starts with an $89 diagnostic. Once you approve a repair that's completed during that visit, the diagnostic fee is credited toward the work. The final cost depends on the failed part, the labor, and the condition of your system.
Replacing a sensor isn't the same job as repairing a compressor or a leaking coil. After-hours calls carry no extra charge, and neither do weekends, so the time you need help won't increase the diagnostic fee
- $89
Once you approve a repair that's completed during that visit, the diagnostic fee is credited toward the work.
- 365 Days
of money-back protection on qualifying repairs. Give us the opportunity to correct the issue first, subject to our guarantee terms.
Repair or Replace Your Heat Pump?
Four Questions Before You Spend More Money
A bad capacitor on a seven-year-old heat pump is one decision. A failed compressor on an older unit that's already needed repairs twice is another. We'll compare the actual repair cost with the system's age and overall condition, rather than treating one breakdown as a reason to replace everything.
| What matters | Repair may make sense | Consider replacement when |
|---|---|---|
| What's failed? | A sensor, capacitor, contactor, or fan needs repair on an otherwise healthy unit. | The compressor or coil has failed and the repair is a major expense. |
| How old is the system? | It's younger than 10 years and has been reliable until now. | It's past 10 years, when ENERGY STAR suggests weighing a replacement, and repair costs are adding up. |
| How does it run in both seasons? | The trouble appears limited to one repairable fault. | Heating and cooling performance have both been declining. |
| What are the actual costs? | The repair is reasonable compared with the remaining value of the system. | The repair is expensive enough that a replacement estimate is worth comparing. |
Why DFW Homeowners Choose Us for Heat Pump Repair
The Right Attention for a System That Does Both
We Diagnose Heating and Cooling Faults
A heat pump can cool perfectly well but struggle to heat, or the other way around. Our technicians check the reversing valve, electrical controls, refrigerant circuit, and other components as needed to find what's causing the trouble. We focus on the fault rather than assuming both modes are affected.
We Repair More Than Just the Basics
Not every heat pump repair is a thermostat adjustment or a faulty capacitor. Our team also handles problems involving compressors, outdoor fans, defrost controls, and refrigerant leaks. We'll assess what's repairable and explain when a major component makes replacement worth considering.
We Service Heat Pumps Across Major Brands
Your heat pump doesn't have to be one we installed. Our technicians work on major brands, including Trane, Carrier, Lennox, Goodman, and Amana. Whether it's an older system or newer variable-speed equipment, we'll identify the fault and determine which repair options are available.
What Happens During a Heat Pump Repair Visit?
- We Get the Full Picture
Our office gathers the details needed to arrange the right visit, including the type of equipment and whether the problem is affecting one or both operating modes.
- We Test How the System Operates
Our technician runs the equipment and checks how its components respond. We follow the fault through the system, using diagnostic readings to establish what's working and what isn't.
- We Show What's Worth Fixing
Once the cause is clear, we explain the repair and its cost. If there are other concerns affecting the system's condition, we'll bring those up so the decision isn't based on one failed component alone.
- We Check Both Modes Where Possible
After completing the approved work, we verify proper operation and test the relevant heating and cooling functions where conditions allow. We also explain any follow-up work the equipment may need.
Book Now
No cooling or no heat? Call (972) 776-4455, day or night.
Let's Get That Heat Pump Working Again
Heating or Cooling, We're Here to Help
A heat pump problem can throw off the whole house, especially when the weather changes overnight. Whether it's a sudden breakdown or a problem that's been getting worse, our team is ready to help arrange the right service. One call gets things moving.
Reach Us When You Need Us
Our phones are answered around the clock, so there's always someone available to take the details. Most daytime calls receive same-day service, depending on technician availability.
Repairs Without the Runaround
We know the last thing anyone wants is to chase down updates or wonder when the work will happen. Our office coordinates appointments and follow-up visits, keeping you informed if anything changes along the way.
4.7stars on Google reviewsNeed help with a heat pump? Call (972) 776-4455 or request service online.
Heat Pump Repair Throughout Dallas-Fort Worth
Our Richardson location puts us within reach of established neighborhoods in Plano and Carrollton, growing communities in McKinney and Frisco, and residential areas throughout Allen, Irving, and Grapevine. Our technicians also travel west to Bedford, Euless, Hurst, Haltom City, and North Richland Hills.
Heat pump repair is available in select parts of Dallas and Fort Worth as well, with coverage determined by ZIP code. If your location isn't mentioned, it may still fall within our service area so call now and confirm!
Our Service Area
- Richardson
- North Dallas (75225, 75229, 75230)
- Carrollton
- Irving
- Hurst
- Euless
- Bedford
- North Richland Hills
- Haltom City
- Fort Worth (76179)
- Grapevine
See all service areas »
Don't see your street? Call (972) 776-4455 and ask.
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The technicians were professional and very knowledgeable. We had our AC serviced, new Gas Furnace installed with air purifier, and also had our air ducts cleaned. I would go to CityLine first before any other company!
Kyle Cooper
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The technician, Alberto, arrived on time, knew the equipment he was working on, was very professional, and was happy and very thorough.
Alann Nevarez
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They contacted us in a timely manner, were on time for the service call and took care of the issues.
Jeffrey N.
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Alberto Nevarez was great. Helped inform us of everything we needed to know plus extra. He went above and beyond to educate us as new home buyers of our systems and needed maintenance. 10 out of 10 would recommend
Tony A.
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CityLine came to my home to check my unit for heating for this winter and were excellent. Technician Jay Jones was superb! He explained in detail everything he reviewed and gave me confidence in the service provided. 10/10! Would recommend to everyone!
Ryan F.
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Travis came by to do a check up on the system. He's very courteous and friendly. All is well with the system.
Adrien C.
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Heat Pump Repair Questions, Answered
AUX means the backup is running. A defrost cycle or a big jump in the setting can trigger it. Hours of AUX on mild days need a check.
A little frost is normal, and a defrost cycle should clear it. Heavy ice that stays can signal a defrost, airflow, or refrigerant problem. Don't chip at the ice.
AUX turns on by itself when the system needs extra warmth. Emergency Heat is a setting you pick if the outdoor unit fails. With electric backup, both cost more.
Yes. CityLine Air Conditioning services Trane, Carrier, Lennox, Goodman, Bryant, American Standard, Amana, and Daikin. We can diagnose the problem even if another contractor installed the equipment.
Yes, but only on summer weekends, May 1 through September 30. Homeowners who book directly pay a $129 diagnostic then, and it's waived with a same-day repair.
Heat pump not heating or cooling? Call CityLine Air Conditioning at (972) 776-4455 to find out what comes next.
(972) 776-4455Office hours 8 AM to 6 PM, with phones answered around the clock.