Home › Heating › Heat Pumps › Heat Pump Repair
Chicago & Cook County · Since 2016
Heat Pump Repair in Chicago, IL
Heat pump blowing cold air, iced over or not turning on? Browns Heating & Cooling repairs ducted heat pumps and ductless mini-splits of every brand across Chicago, with 24/7 emergency service, same-day appointments and an upfront price before any work begins.
Heat pump repair near you
Fast, Honest Heat Pump Repair for Chicago Homes
A heat pump works harder in Chicago than almost anywhere else. It heats your home through long, below-freezing winters and cools it through humid summers, so it runs nearly all year. When something goes wrong, you notice quickly: rooms that will not warm up, cold air from the vents, an outdoor unit covered in ice or an electric bill that suddenly jumps.
Browns Heating & Cooling provides prompt, efficient heat pump repair across Chicago and Cook County, from Lincoln Park, Lakeview and Logan Square to Hyde Park and Beverly. Our EPA-certified, factory-trained technicians diagnose the real cause, whether it is a failed capacitor, a refrigerant leak, a stuck reversing valve or a defrost control that has stopped working, and fix it right the first time.
We repair central ducted heat pumps, dual-fuel systems paired with a gas furnace and ductless mini-splits. We are available 24/7 for emergencies. Call (708) 536-8134 or book online.

Is it an emergency?
When to Call for Emergency Heat Pump Repair
Not every heat pump problem is an emergency, but in a Chicago winter some are. If your heat pump is your main heat source and it stops heating in freezing weather, a house can get dangerously cold and pipes can freeze. Electrical problems, such as a burning smell or a breaker that keeps tripping, should also be checked right away.
Call us right away
- No heat when it is near or below freezing outside
- The outdoor unit is completely encased in ice and is not defrosting
- Burning smell, smoke or a breaker that trips again after you reset it
- Loud grinding, screeching or banging from the outdoor unit
- Water leaking near the indoor unit, electrical parts or ceiling
Book a repair soon
- Air from the vents feels lukewarm or cool for long stretches
- The system runs constantly or short cycles
- Backup or emergency heat comes on far more often than usual
- New buzzing, clicking or rattling noises
- Electric bills higher than last year for no clear reason
Troubleshooting
Common Heat Pump Problems We Repair in Chicago
Here are the problems we see most often, what usually causes them and what you can safely check before you call. Refrigerant, electrical components and anything inside the unit should be left to a licensed technician.
| Symptom | Common causes | What you can safely check |
|---|---|---|
| Blowing cold air in heat mode | A normal defrost cycle, low refrigerant from a leak, a stuck reversing valve, thermostat set to Cool or fan set to On | Thermostat set to Heat and fan to Auto; cool air for 5–15 minutes during defrost is normal |
| Outdoor unit iced over | Failed defrost control or sensor, low refrigerant, a bad outdoor fan motor, blocked airflow, gutter water dripping on the unit | Clear snow and debris from around the unit; never chip ice off the coil |
| Heat pump won’t turn on | Tripped breaker, failed capacitor or contactor, thermostat or wiring problem, safety switch tripped | Thermostat batteries and settings, breaker and outdoor disconnect |
| Runs constantly or short cycles | Low refrigerant, dirty filter or coil, oversized or undersized unit, thermostat location, failing sensor | Replace a dirty air filter; check the thermostat is not near a heat source |
| Backup heat runs too much | Thermostat setup, low refrigerant, a failing compressor or the outdoor unit not keeping up | Note how often "Aux" or "Em Heat" shows on the thermostat |
| Loud or unusual noises | Worn fan motor or bearings, loose panels, failing compressor, debris in the fan | Turn the unit off if it is grinding or screeching, then call |
| Water leaking indoors | Clogged condensate drain or pan, frozen indoor coil, failed condensate pump | Turn the system off if water is near wiring or the ceiling |
| Not cooling in summer | Low refrigerant, dirty outdoor coil, failed capacitor, reversing valve stuck in heat mode | Clear plants and debris from around the outdoor unit |
Not sure what you are seeing? Call us and we will talk you through it before sending a technician.

Winter & defrost
Heat Pump Problems in a Chicago Winter
A heat pump pulls heat from the outdoor air, even when it is well below freezing. As it does, frost forms on the outdoor coil. Every so often the system switches into a defrost cycle to melt that frost, usually for 5 to 15 minutes, and during that time you may see steam from the outdoor unit and feel cooler air indoors. That is normal. What is not normal is a coil that stays covered in thick ice, cold air that never stops, or a defrost cycle that seems to run constantly.
Most heat pumps also have backup heat, either electric heat strips in the air handler or a gas furnace in a dual-fuel system. Backup heat is meant to help on the coldest days and during defrost. If it is running most of the time, the heat pump itself is usually not doing its job, and your electric bill will show it. A failing defrost sensor or control board, low refrigerant, a weak outdoor fan or a compressor problem are the usual causes.
Snow and ice add their own problems in Chicago. Drifting snow can bury the outdoor unit, and water dripping from a gutter can freeze on top of it. Keep at least a foot or two of clearance around the unit, and call us rather than chipping at ice, which can puncture the coil.
Ducted, ductless & dual fuel
We Repair Every Type of Heat Pump
Central air-source heat pumps connect to your ductwork and replace both a furnace and an air conditioner, or work alongside a gas furnace in a dual-fuel setup that switches to gas on the coldest days. We repair outdoor units, indoor air handlers, refrigerant lines, reversing valves, defrost controls and the thermostats and wiring that tie it all together.
Ductless mini-splits are heat pumps too, and they are common in Chicago condos, additions, converted attics and older homes without ductwork. Their indoor heads need clean filters and coils, clear condensate drains and correctly charged refrigerant lines to keep heating in winter. We repair single-zone and multi-zone mini-splits from every major manufacturer. Learn more about our ductless mini-split services.
Whatever the system, we start with a full diagnosis and give you an upfront price before any work begins.
| System | Where it is common | Typical repairs |
|---|---|---|
| Central ducted heat pump | Single-family homes and newer construction with ductwork | Capacitors, contactors, reversing valves, defrost controls, refrigerant leaks, fan motors |
| Dual-fuel heat pump | Homes that pair a heat pump with a gas furnace | Changeover settings, thermostat and control wiring, furnace and heat pump faults |
| Ductless mini-split | Condos, additions, attics and older homes without ducts | Indoor head drains and coils, sensors, communication errors, refrigerant leaks |
How it works
Our Heat Pump Repair Process
Clear communication from the first call to the final test, backed by our 100% satisfaction guarantee.
Call or book online
Tell us what is happening. We offer same-day appointments and 24/7 emergency service.
Full diagnosis
Your technician checks the indoor and outdoor units, refrigerant, electrical parts, defrost controls and thermostat to find the real cause.
Upfront price first
We explain the problem in plain language and give you a clear price before any work begins.
Repair & test
We complete the repair and test the system in both heating and cooling so it is ready for any season.
Repair or replace?
Should You Repair or Replace Your Heat Pump?
Most heat pump problems are worth repairing. Capacitors, contactors, fan motors, sensors, defrost controls and small refrigerant leaks are routine repairs that restore heating and cooling for a fraction of the cost of a new system.
Replacement starts to make sense when the heat pump is past about 10 to 15 years old, needs repairs every season, or faces a major repair such as a failed compressor on an older unit. Very old systems that use R-22 refrigerant are another case: R-22 is no longer produced in the United States, so recharging those units keeps getting more expensive.
We will always tell you honestly which option makes sense. If a new system is the better investment, see our heat pump installation and replacement service and ask about financing on approved credit.
| Usually repair | Usually replace | |
|---|---|---|
| Age | Under about 10 years | Over 10–15 years |
| Repair history | First or occasional repair | Repairs every season |
| Type of failure | Capacitor, contactor, fan motor, sensor, defrost control | Failed compressor on an older unit |
| Refrigerant | Current refrigerant, small fixable leak | Older R-22 system or repeated leaks |
| Comfort & bills | Bills steady, comfort restored after repair | Bills rising and backup heat running constantly |
Prevent the next breakdown
Avoid Heat Pump Repairs With Regular Maintenance
Because a heat pump runs for both heating and cooling, it gets twice the use of a furnace or air conditioner. Regular maintenance, ideally before winter and again before summer, catches worn capacitors, dirty coils, low refrigerant and failing defrost parts before they leave you without heat.
A tune-up includes cleaning the outdoor and indoor coils, checking refrigerant levels, testing the reversing valve and defrost cycle, tightening electrical connections, checking the capacitor and contactor, clearing the condensate drain and confirming the thermostat and backup heat work correctly.
Simple habits that help
- Change or clean the air filter every 1–3 months
- Keep 1–2 feet clear around the outdoor unit
- Clear snow after storms and keep gutter water off the unit
- Leave the thermostat on Heat with the fan on Auto
- Avoid big temperature setbacks that trigger backup heat
- Book a tune-up before winter and before summer
Why Browns
Why Chicago Homeowners Call Browns for Heat Pump Repair
We know how heat pumps behave in a Chicago winter, and we explain what we find in plain language. With a BBB A+ rating, hundreds of five-star reviews and financing on approved credit, we make it easy to get your comfort back.
24/7 emergency & same-day service
We answer day or night and offer same-day appointments.
Fully stocked trucks
Common heat pump parts on board, so many repairs are done in one visit.
Upfront, transparent pricing
You approve the price before we start. No surprises.
Background-checked technicians
EPA-certified, factory-trained and drug-free.
All makes & models
Ducted heat pumps and ductless mini-splits. See brands we service.
100% satisfaction guarantee
Every repair is backed by our guarantee.
Reviews
What Chicago Homeowners Say

Service areas
Heat Pump Repair Across Chicago & Cook County
We repair heat pumps and mini-splits in homes, condos, two-flats and businesses throughout Chicago, including Lincoln Park, Lakeview, Logan Square, Wicker Park, Old Town, Hyde Park, Bronzeville and Beverly, plus Oak Lawn, Orland Park, Tinley Park and other nearby Cook County suburbs. Choose your area for local details, or call and we will confirm coverage for your address.
FAQs
Heat Pump Repair FAQs
Why is my heat pump blowing cold air?
If it lasts only 5 to 15 minutes, the heat pump is probably in a normal defrost cycle. If it continues, check that the thermostat is set to Heat and the fan to Auto. Ongoing cold air usually points to low refrigerant, a stuck reversing valve or a defrost control problem, which need a technician.
Is ice on my heat pump normal in winter?
A light layer of frost is normal and should clear during the defrost cycle. If the outdoor unit is covered in thick ice or the coil stays iced for hours, the defrost system, refrigerant charge or outdoor fan likely needs repair. Do not chip ice off the coil.
Do heat pumps work in Chicago winters?
Yes. Modern cold-climate heat pumps keep heating well below freezing, and most systems have electric or gas backup heat for the coldest days. Regular maintenance and correct thermostat settings help them run efficiently all winter.
What is emergency heat on a heat pump?
Emergency heat runs only your backup heat, such as electric heat strips or a gas furnace, without the heat pump. Use it if the heat pump has stopped heating, then call for repair. Running on emergency heat for long periods costs more.
Do you offer 24/7 emergency heat pump repair?
Yes. We answer 24/7 for no-heat calls and other urgent heat pump problems, and same-day appointments are available.
Do you repair ductless mini-splits?
Yes. Ductless mini-splits are heat pumps, and we repair single-zone and multi-zone systems. See our ductless mini-split services.
How long does a heat pump last?
Most heat pumps last about 10 to 15 years. Regular maintenance helps them reach the top of that range, especially in Chicago, where they run for both heating and cooling.
Which heat pump brands do you repair?
We repair all makes and models of ducted heat pumps and ductless mini-splits. See the brands we service.
Heat Pump Not Working? Get It Fixed Today
Call us at 708-536-8134, 24/7, or book online.
Contact
Contact Our Heat Pump Specialists
A malfunctioning heat pump is a major inconvenience, especially in extreme weather. Our technicians diagnose issues quickly and provide long-lasting repairs, with 24/7 emergency service when you need it.







