Tag Archives: heat pumps

How Concerned Should You Be If Your Home’s Heat Pump Freezes Over?

How concerned should you be if your heat pump freezes over?  Maybe not very—at least, not just yet. If a light coating of frost appears on the heat pump’s external coils, as well as the refrigerant lines that run into the house, it probably just means the outdoor temperature’s dropped to 40 degrees or below and the amount of water vapor in the air is above 70 percent. Since the heat pump coil typically runs about 20 degrees lower than the outdoor temperature, dew forming on the cold coil and refrigerant conduit freezes into a dusty layer of frost.

HVAC systemTwo caveats are important to keep in mind when your heat pump freezes over:

  • Frost should be a temporary issue. Heat pumps incorporate defrosting technology to automatically eliminate frost on the coils. A reversing valve in the system redirects warm refrigerant flow back the outdoor coil and melts the frost. These systems may be actuated at regular intervals by a timer or controlled by a microprocessor that senses frost conditions.In any case, the appearance of frost on the heat pump shouldn’t linger for more than a couple of hours. If frost continues to accumulate beyond that time frame, a defect in the defrost cycle may have occurred.
  • Ice is another matter. A thick coating of ice on the coil differs from a layer of frost. Ice forming on a heat pump may eventually encase the entire unit and obstruct airflow through the coil. Usually, the system will either run non-stop or automatically shut down.If obvious causes such as falling sleet or freezing rain are ruled out, thick ice accumulation on a heat pump indicates potential malfunctions such as a low refrigerant charge, which is usually indicative of a leak, a defective defrost timer or sensor, or a stuck reversing valve.

For anything more than light frost accumulation that melts within a few hours, contact a qualified HVAC service provider.

If the heat pump freezes over in your Boston area home, call Rodenhiser Plumbing Heating & Air Conditioning.

Image via Shutterstock.com

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Heat Pump Getting Up in Years? Why a Replacement Shouldn’t Be Avoided

heat pump replacementA quality heat pump is a great investment that can last for years on end, but even the best system can get a bit long in the tooth after years of reliable service. When it comes time to replace the system, you should take the opportunity to choose a replacement that offers the best in energy efficiency and performance. Read More Heat Pump Getting Up in Years? Why a Replacement Shouldn’t Be Avoided >>

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How Heat Pumps Heat When It’s Really Cold Outside

How Heat Pumps Heat When It's Cold OutsideElectric air-source heat pumps can be a practical heating and cooling option for your Massachusetts home. However, they need to have a workable backup heating system to provide comfortable home heating when temperatures outside fall below freezing for extended periods.
Read More How Heat Pumps Heat When It’s Really Cold Outside >>

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Considering a Ductless Mini Split Heat Pump? Tips for Getting More Out of It When It’s Cold

ductless mini split heat pumpsThe ductless mini split heat pump is the proven alternative to space heating and cooling individual rooms. In homes where central heat and cooling isn’t installed or where extending existing ductwork to new additions or retrofits isn’t feasible, the ductless mini split provides superior efficiency combined with the power of a central system. Read More Considering a Ductless Mini Split Heat Pump? Tips for Getting More Out of It When It’s Cold >>

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Heat Pump Troubleshooting Tips for Your Massachusetts Home

heat pump troubleshootingYou got the A/C tuned up for summer and even got some insight in electricity myths. The heat pump seems to have a malfunction. Before you call an expert, it is useful to follow some heat pump troubleshooting tips first. Heat pumps are usually very dependable and durable. Very often, you can fix a small fault by yourself. Read More Heat Pump Troubleshooting Tips for Your Massachusetts Home >>

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Which Type of Air Conditioner Would Work Best in Your Holliston Home?

type of air conditionerThis summer, escape the heat with reliable and efficient air conditioning. Create an oasis in your own home with the best air conditioner for your personal habitat. Here’s a look at the best cooling options out there.  Read More Which Type of Air Conditioner Would Work Best in Your Holliston Home? >>

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When Upgrading HVAC Equipment and Home Appliances, Choose the Energy Star

energy starWhen you need to upgrade the major appliances in your home, choosing Energy Star qualified products will help you save energy in the long run and lower your utility bills. These appliances may cost a bit more at first, but the investment will pay you back. The federal Energy Star program was established to make it easy for consumers to choose products that use energy wisely. Read More When Upgrading HVAC Equipment and Home Appliances, Choose the Energy Star >>

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The Heat Pump Thermostat Is Different – Some Tips on Using it for Heating

heat pump thermostatMany homeowners with heat pumps cringe every time they open their electric bill in the winter because they know the bill will be high. Heat pumps can keep your home comfortable in the winter, however you need to know how they work to keep your electric bill under control. Read More The Heat Pump Thermostat Is Different – Some Tips on Using it for Heating >>

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Considering a Heat Pump for Your MetroWest Boston Home? Learn More

considering a heat pump, Holliston, MassachusettsIf you’re upgrading your cooling or heating systems, or both, considering a heat pump with the latest advanced features for your MetroWest Boston home pays off with premium energy savings and home comfort in any season. Read More Considering a Heat Pump for Your MetroWest Boston Home? Learn More >>

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Does Your Heat Pump Cooling System Need Better Care?

heat pump cooling system care,  Holliston, MassachusettsThere is nothing more important than performing maintenance on your HVAC system if you would like to see it run at maximum performance. While there are a lot of parts to maintain, it is easy to forget about the importance of the heat pump cooling system. Read More Does Your Heat Pump Cooling System Need Better Care? >>

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