A-1 Mechanical Blog: Posts Tagged ‘Heat Pumps’

Why Is My Heat Pump Not Blowing Hot Air?

Monday, December 4th, 2023

Your heat pump works hard to keep your home cool in the summer and warm in the winter. As a 2-in-1 HVAC system, you look forward to its ability to keep your home comfortable all year round.


That’s why in the winter, it can be extremely frustrating when a heat pump is not blowing hot air. Cold air is what you want in the summer, not the winter.

You may be wondering if your heat pump is simply failing to change from cooling to heating mode or if something else is causing the issue. Let’s look at 4 possible causes of a heat pump that’s not blowing hot air.

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4 Signs Your Heat Pump Needs Repair

Monday, August 14th, 2023

If you own a heat pump, you’re probably quite happy with its performance. These two-in-one heating and cooling systems are increasing in popularity and for good reason. But just like with any major system, they still require the occasional repair need from every now and then. 

What are some signs that your heat pump needs repair? Unusual noises, a heat pump that won’t switch modes, short cycling, and decreased airflow are all good signs that it’s time to call us for professional heat pump repair. Let’s go into more detail so you’ll know which repairs shouldn’t wait.

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Are Heat Pumps and Mini Splits the Same Thing?

Monday, July 17th, 2023

Are you on the search for a new HVAC system? Have you been Googling heating and cooling near me, trying to figure out what type of system is the best? Many homeowners who are in the market for a new air conditioner or furnace are feeling confused by all the options that are now available.

One of the systems that has probably come up in your research is a heat pump. You may even be confused if you’re searching for an air conditioner and you’re constantly getting something with “heat” in the name. 

A common question we get is: “Are heat pumps and mini splits the same thing?” The short answer is yes, but they also have many differences. Let’s go over what heat pumps and mini splits are so you can be an informed homeowner when it’s time to purchase a new system.

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Using and Maintaining Your Heat Pump

Tuesday, April 11th, 2023

How to Improve Your Heat Pump’s Efficiency

How to Improve Your Heat Pump's Efficiency

A-1 Mechanical is your local heating and cooling specialist in Lansing, Michigan, we help homeowners design systems for both hot summers and cold winters. Heat pumps provide cool air by circulating indoor air across very cold indoor coils. During the winter heat pumps condense outside air and circulate indoor air across hot indoor coils. Because Michigan winters become extremely cold, most homeowners use a heat pump for most of the winter and supplement warmth through a furnace on very cold days.

The goal of using your heat pump is to provide complete comfort while consuming the least amount of energy. Heat pumps are rising in popularity because they are driven completely by electricity. This means the heat pump does not create direct emissions and therefore, is considered renewable energy. When you work with a professional heat pump specialist from A-1 Mechanical you will discover the heat pump’s thermostat plays a large role in reducing energy bills.

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Why Is My Heat Pump Not Keeping Up?

Friday, May 21st, 2021

Contrary to what the name might suggest, heat pumps can be used to both heat and cool a home. When your heat pump isn’t keeping up with your demands when you need it most, however, there can be a number of issues at play. Keep reading to discover what might be keeping your heat pump from reaching your set temperature, and what you should do when that happens.

What Can Keep a Heat Pump From Reaching a Set Temperature?

Unit is Iced Over

Setting your thermostat below 70°F can cause your heat pump system to frost or even completely freeze up. When this happens, your unit won’t run as efficiently and will likely have trouble reaching a set temperature.

Additionally, your system can be prone to more issues if you continue to use it while it’s iced over. The fan blades on your system, for example, can break, or refrigerant may leak within the outdoor unit.

System Isn’t Running

If your system is having trouble just turning on, it likely won’t be able to consistently reach the temperatures you’re setting. This could quickly turn into an emergency, especially during extremely hot or cold weather, so it’s important to call on a professional heating, air conditioning and indoor air quality technician immediately after noticing that your heat pump unit is not turning on.

A professional can diagnose the issue and recommend the best course of action, whether it’s heat pump repair or replacement services.

Vents in the Home are Closed

If some rooms feel as though they’re at the temperature you’ve set and other rooms feel significantly warmer or cooler, the issue could be as simple as having vents in your rooms that are closed. Ensure that all rooms in the home have open vents before reaching out to a professional about having your unit inspected.

Allowing the air to circulate and flow freely can do wonders in helping your home reach the temperature that you’ve set.

What are Some Common Heat Pump Problems?

Lack of Power

The risk of having a heat pump is that they’re fully electric, which can cause issues in the event that your home’s power supply goes out. If your heat pump isn’t turning on but you haven’t recently suffered a power outage, ensure that the circuit breaker hasn’t been tripped.

A lack of power to your heat pump for too long can cause the evaporator coil to freeze and not work when the AC turns back on. If the system hasn’t had power for over half an hour, get in touch with a professional to learn about the best way to turn the system back on to ensure you don’t experience any issues.

Unreliable Thermostat

Sometimes, a heat pump that doesn’t reach the set temperature can be the fault of your thermostat, rather than the heat pump itself. If you’ve had your heat pump inspected and everything appears to be normal, have your thermostat checked. The unit could be calibrated incorrectly and not communicating with the heat pump.

Reversing Valve is Broken

The reversing valve within your heat pump is the part that allows the unit to be used for both heating and cooling. When this valve is broken, it can cause inefficient heating and cooling and should be fixed immediately.

A-1 Mechanical Solves Heat Pump Issues

Heat pumps are complex systems that can often be confusing. When your heat pump experiences any issues that cause it to not work as efficiently as it once did, you should get in touch with an HVAC professional. Doing so will ensure that the issue is fixed properly to give your family enhanced comfort and safety all year long.

The experts at A-1 Mechanical know that you can’t afford to be without proper heating and cooling during the coldest and hottest of days. If your heat pump isn’t working properly and experiences any of the issues above, or any not on that list, don’t hesitate to get in touch with us.

Contact A-1 Mechanical for Heat Pump Services

For all of your HVAC system service needs in the Lansing or the Grand Rapids, MI area, get in contact with the experts at A-1 Mechanical, and schedule an appointment today. We’ll provide your heat pump with the service and attention to detail that you deserve.

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How Often Do I Need Heat Pump Maintenance?

Monday, August 31st, 2020
Heat Pump

Heat pump maintenance is critical to the performance, energy efficiency and longevity of your Lansing area home’s heat pump system. These popular HVAC systems offer both cooling during the warm months and heating for the cold ones. Because they’re used for more of the year than an air conditioner or furnace, there may be some confusion regarding how often heat pump maintenance should be performed.

Because you rely on the heat pump for year-round indoor comfort, maintenance for your system must be a priority. In this blog, the NATE-certified technicians at A-1 Mechanical explain how frequently tune ups are required and detail the maintenance care your system needs to stay in top shape.

How Frequently Is Heat Pump Maintenance Needed?

As mentioned above, heat pumps pull double duty in Michigan homes, delivering both heating and cooling. Because they run most of the year, they experience more wear and tear. Because of this, heat pump service is recommended two times per year for residential units.

When Should Heat Pump Tune Ups be Performed?

Just like maintenance for air conditioning units and furnaces, heat pump tune ups should typically be performed in the spring and fall – once before warmer weather arrives and again before winter. This timing ensures the tune up is completed before entering periods of heavy use. A tune up will prepare your system to perform efficiently when needed, and issues in need of repair can be resolved before you’re surprised with a heat pump malfunction when you turn it on for the first time each season.

What Does a Heat Pump Tune Up Include?

A professional heat pump maintenance tune up includes many steps that work to enhance energy efficiency, improve performance levels and prevent future repairs. These steps include:

  • Airflow measurement through the system
  • Verification of refrigerant charge
  • Inspection of refrigerant lines
  • Tightening and cleaning of electrical connections
  • Lubrication of motors
  • Inspection and tightening of belts
  • Testing startup, shutdown and other controls
  • Verification of thermostat operation

A-1 Mechanical’s Residential Preventive Maintenance Plans make it easy to stay on top of your heat pump’s maintenance requirements. Join today and you’ll receive two yearly system tune ups plus other valuable services and discounts.

Maintenance Steps for Homeowners

In addition to two yearly tune ups, your home’s heat pump requires additional care from you throughout the year. These tasks are easy to perform as part of your regular home maintenance routine.

  • Change the air filter on a regular basis. Check the recommended replacement frequency given by the filter manufacturer and visually assess the existing filter monthly so you’ll know when a replacement is needed.
  • Keep the outdoor unit free of debris. Remove grass clippings, mulch and other yard waste that accumulates on the unit’s fins. Remove any vegetation growing along the unit, and trim back shrubs to provide at least 24 inches of clearance surrounding the unit.

Call A-1 Mechanical for Heat Pump Maintenance

A-1 Mechanical helps homeowners throughout the Greater Lansing area care for their heating and cooling units. We perform comprehensive heat pump service tune ups that improve system performance and energy efficiency so it is able to deliver more reliable, cost-effective comfort inside the home. Schedule heat pump tune up today!

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Why Is My Heat Pump Not Heating?

Thursday, February 20th, 2020
Heat Pump

Is your heat pump not blowing hot air? This frustrating problem is common with heat pump owners, but it doesn’t always mean your system is damaged. Check out these common reasons that heat pumps may not produce hot air constantly and when to consult with a professional at A-1 Mechanical.

Common Reasons For Heat Pump Not Blowing Hot Air

If you notice that the heat coming out of your vents isn’t as warm as you would like it to be, go through this list before you worry. However, remember, any time you find your heat pump not blowing hot air, call a Lansing, MI heating repair contractor to have them troubleshoot the issue for you.

Air May Be Warm, But Not Feel Like It

When your heat pump produces warm air, the air blowing out of your vents will be somewhere in the 85 to 92°F range. However, this temperature pales in comparison with the air emanating from a gas furnace, which is typically between 130 to 140°F. If you are new to a heat pump system, keep in mind that the air coming from your vents will not feel as warm as the air stemming from a gas furnace, but heat pumps will warm your home to the desired temperature — if you give it time.

Heat Pump System Could Be In “Defrost” Mode

When the weather outdoors drops, condensation and frost accumulate on the outdoor components of your heat pump. To keep your system operational, it triggers a “defrost mode,” which runs every 30, 60 or 90 minutes, depending on the model of heat pump you have. When defrost mode runs, the air coming from your vents will feel cool. However, when defrost mode ends, the system will return to providing warm air.

Your Heat Pump Could Have A Refrigerant Leak

Your heat pump uses refrigerant to transfer any warmth from the air outside into your home. Unfortunately, if there is a leak in your line somewhere, it could inhibit your heat pump’s ability to provide this service, creating cold air from your vents.

Frozen Outdoor Components on Your Heat Pump

Occasionally, refrigerant leaks cause outdoor components to freeze, even after several defrost cycles. If this is the case, your heat pump system needs to be professionally addressed. You may see frost or ice buildup on your outdoor heat pump unit that does not seem to melt. The system is unable to work and blow hot air in this case.

Damaged Reversing Valve

Heat pumps are special because they heat your home during the winter and provide air conditioning to your home during summer. This process changes with the help of a reversing valve, which switches the direction of the refrigerant. However, if your reversing valve is damaged, your system may be stuck in air conditioning mode.

When Should You Call For A Heat Pump Repair?

It’s always a good idea to keep your fingers on the pulse of your HVAC system. Here at A-1 Mechanical, we recommend calling whenever you see there is an ongoing problem, or if there are new changes to your heat pump system that are creating heating and cooling problems.

Problems? A-1 Mechanical is Here to Help

Our team has been helping residents throughout the greater Lansing and Grand Rapids area since 1983s, and we are committed to taking care of the job the right way the first time. We offer residential and commercial heating and cooling service, helping people to stay safe and comfortable. For heat pump repair, schedule heating service today.

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Air Source Heat Pumps FAQs

Tuesday, May 14th, 2019
Heat Pumps

Even when you’re reaching for your winter coat, a heat pump will be able to extract heat from outdoor air to keep your home comfortable. Heat pumps work by moving heat energy from outdoor air into your home (or vice versa). To help you choose the best HVAC system for your home, our heating and cooling system contractors at A-1 Mechanical compiled a list of frequently asked questions we get from customers about air-source heat pumps.

Keep reading to learn how heat pumps help reduce energy bills so you save money in the long run. For more information, call your local HVAC contractor.


Heat pumps use differences in air temperature to heat and cool your home. Even the coldest winter air has heat energy. A heat pump uses a refrigeration system (similar to an air conditioner) containing a compressor and two coils. During the winter, liquid refrigerant in the outside coils extracts heat from the air and evaporates into a gas. From there, the heat energy is send to the indoor coils where it is used to heat your home. As the refrigerant cools, it turns back into a liquid. The refrigerant flows in the opposite direction in the summer to keep your home cool.


Mini split heat pumps can be installed anywhere in your home to create temperature zones. Like the name suggests, ductless heat pumps don’t need ducts to work, which makes them perfect for home additions out of range of your original heating and cooling system. A mini split system is also great if you and your family don’t always agree on thermostat controls. Ductless heating and cooling means you won’t have to shiver in your turtleneck and sweater while your kids complain how hot it is.


A heat pump system reduces the strain on your furnace and air conditioning unit while keeping your home at a comfortable temperature. By only using your furnace and air conditioner for supplemental heating and cooling, you’ll save money on repairs.

Unlike other home heating systems that convert fuel into energy, a heat pump simply moves heat from one place to another. Since heat pumps use less energy to heat and cool your home, you’ll start saving money on utility bills. According to ConsumerReports.org, air-source heat pumps can reduce your winter energy bills by about 50% if you’re currently using a baseboard heater or electric furnace.


Yes. In fact, air-source heat pumps remove humidity better than central air conditioners. Part of what can make summers so miserable is the humidity that comes with high temperatures. Thankfully, a heat pump system is able to remove humidity so you can stay comfortable on even the muggiest days.

Our Lansing HVAC contractors at A-1 Mechanical offer a range of heating and cooling services so your home stays comfortable year-round. To learn if a heat pump system are right for your house or to learn how to use and maintain your heat pump contact our team.

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