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Ask John Heat Pump Freezing Main Image
Ask John Heat Pump Freezing Main Image

Why Is My Heat Pump Freezing Up?

John Turpin is our resident home service repair expert here at Service Direct. He’s got the knowledge and experience to help homeowners like you make sense of most home repair issues. And with Service Direct, we connect you with top-tier service professionals to help with any repairs needed.

Is Your Heat Pump Frozen? Here’s What To Do!

The colder months of the year are easier to bear thanks to heat pumps. Nevertheless, ice might form on your centralized air conditioning machine at some point. You have the ability to take precautions that will prevent the heat pump you’re using from being frozen.

It may be a source of discomfort for the whole family if, during the winter, your heat pump becomes frozen over. It is very necessary for you to make use of the assistance of a qualified HVAC contractor who can assist you in determining the nature of the issue with the heat pump as well as perform the necessary repairs for you.

Refrigeration is what facilitates the heat exchange inside the HVAC unit, which is where you’ll find the compressors. When all circumstances are within the typical range, the ice compressor also functions without any problems.

Ask John Frozen Heat Pump
Check out the some of the most common reasons your heat pump is freezing.

Why Is My Heat Pump Iced Up?

It is typical to be perplexed about how a heating, ventilation, and air conditioning (HVAC) system might freeze up during the warmer months throughout the year. Considering that it is warm outdoors, the accumulation of ice may appear counterintuitive to you. However, if you give it some thought, you’ll see that it does have a logic to it.

Your heat pumps will bring the temperature of the air above the refrigerant as it passes through the coils of the evaporator, so cooling your house. Condensation may form on the coils if warm air comes into contact with them. If the coil becomes too cold and there is an excessive amount of moisture, it may freeze, which may cause your unit to freeze up completely during the summer.

An Obstruction in the Air Filter

It is possible to clog air filters by leaving them in place for an extended period of time as they accumulate dust and other particles. This obstructs the passage of air, which in turn traps moisture. A couple of instances of items that might cause your filter to get clogged are dust, dander from pets, and smoking.

It is recommended that you replace the filter in your system as soon as it becomes clogged with dust and debris. How soon your filter gets clogged is dependent on a variety of conditions in your house. Many experts strongly suggest that you replace your filter at the very least once every 3 months.

First, try changing out your air filter, and then turn up the heat setting on your appliance to melt the ice. In the event that this does not resolve the issue, please do not hesitate to get in touch with one of our highly educated specialists so that they can assist you.

Our resident home repair guru, John Turpin, discusses what is causing your heat pump to freeze, along with some suggested solutions and DIY tips to fix it.

Coolant Levels Are Too Low

It’s possible that your heat pump has begun to leak if it has a low level of refrigerant. This may be the result of a failing valve, a weakened solder connection, or loose fittings. In addition, if a component rubbed against the coolant tank often enough over time, it would ultimately pierce the tank, which would cause it to freeze up.

Turn off your heat pump as a precaution as soon as you hear the pipes beginning to make noise. Then you should get in touch with HVAC specialists as soon as possible for an examination.

Dirty Evaporator Coil

The evaporator coil in your heat pump is where the refrigerant goes through. It brings heat inside your house when the temperature outside is lower, and it removes heat when the temperature outside is higher. When the coil gets unclean, it is unable to transmit heat as effectively as it once did and a freeze-up may result from restricted airflow.

Turn off your heat pump as soon as you see ice forming on the coils of your unit. The ice will begin to melt as you slowly pour the warm water onto the coils in the next step. In the event that your coils begin to freeze again, please contact an HVAC technician.

Ask John Heat Pump Dirty Coil
Review our common tips and repair tricks for faulty heat pumps.

A Problem with the Blower Motor

If the blower motor in your system is not operating at full capacity, this may wreak havoc on the system and cause it to freeze up. There is a chance that the fan may operate with a shortened spinning cycle, start and stop randomly, or not operate at all. In the event that this is the case, an HVAC technician should swap it out

Impure Rotor Blades of the Fan

The airflow as well as exhaust output of the system are both negatively impacted if the fan blades of the blower are unclean. It is possible for moisture to get trapped and transform into ice. In the event that this occurs, give a call to a technician so that they can make the necessary adjustments, since the fan’s blades may be somewhat fragile.

Neglect during the Winter Season

Several air-source heat pumps (ASHPs), which you may or may not have in your Pennsylvania home, may or may not function properly when the temperature

Furthermore, the appliance should remain perfectly level with the surface of the ground at all times; even the slightest tilt could allow moisture to become trapped and then freeze. Again, if you suspect that the heat pump in your home is not level, speak to our specialists that work with heating, ventilation, and air conditioning.

Lastly, your unit should not be located where gutter flow is present since this might lead to the creation of ice. Always be sure to check for any ice buildup all around or surrounding your unit throughout the winter months, and sweep it away to avoid any more problems.

Ask John Heat Pump Faulty Fan Blade
Remember to call on an expert when you’re uncomfortable with or unsure about fixing your heat pump issues.

Heat Pump Freezing FAQs

What do I do when my heat pump is frozen?

If the outside unit of your heat pump freezes over, you should switch off your heat pump and take off the ice. Also, keep in mind that you should never touch the exterior unit of a heat pump with a sharp item.

Fixing leaking gutters might stop water from getting into the heat pump. You may also prevent debris from blocking the heat pump’s airflow by raising it off the ground. Clean out the heat pump completely.

A trained HVAC technician can assist you in replacing your air filter on a regular basis if it becomes blocked.

How do heat pumps work?

Instead of producing heat or cooling, heat pumps move existing energy around. Both the interior fan coil component and the external compressor work together to recirculate the air in your home.

Heat pumps work in reverse when heating a house; they draw heat from the outside air and release it inside during the cooling mode, and vice versa during the heating mode.

In warmer regions, heat pumps are used more frequently. Locations with mild winters are ideal for using heat pumps. Together with a furnace, they provide welcome warmth in colder climes.

What are the parts of a heat pump?

The primary parts of any heat pump are as follows:
– Exterior unit
– Indoor unit
– Expansion valve
– Reversing valve
– Refrigerant
– Compressor

If you take the time to learn about the fundamentals of your heat pump, you’ll have a far better chance of keeping it in top condition for as long as possible.

Hire a Local HVAC Pro

The methods above are effective DIY tips to investigate, diagnose, and fix your frozen heat pump. But if you need professional help, then don’t hesitate to contact a local HVAC pro using the phone number or form on this page.

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