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Why Is My Heat Pump Icing Up?

Heat pumps are highly efficient heating and cooling machines. Sometimes during the winter, the outdoor condenser collects a layer of ice. Why does this happen? Should you be concerned when your heat pump ices up?

Why Is the Heat Pump Freezing Up & Should I Be Concerned?

Even cold, dry air contains water vapor. When the vapor is exposed to a temperature below dew point, it changes from a vapor into a liquid. When dew point is also below freezing, the liquid water turns to ice. This is the reason dew forms on grass in the summer and frost forms in the winter.

The perfect condition for a heat pump to ice up is when outdoor air is between 20 and 40 degrees and relative humidity approaches 70 percent or higher. These conditions are common during New Jersey winters.

A little bit of frost is completely normal. Most heat pumps today have a sensor to tell it when ice is forming. Before it becomes too thick, the defrost cycle automatically sends heat back through the outdoor coil to thaw the ice.

What to Do

If you check your heat pump and see a thin layer of ice starting to form, check back later to see if it’s still there. As long as the ice doesn’t linger, you have nothing to worry about. However, you should become concerned if the entire unit becomes encased in ice, including the top and inside of the unit. If you see this type of ice buildup happening, call a heating and cooling expert to address the problem quickly because something is probably wrong with the defrost cycle. Running a heat pump with a thick layer of ice can:

 

  • Decrease efficiency
  • Damage the equipment
  • Compromise comfort in your home

Please understand that it’s normal for a heat pump to stop heating your home for two to 10 minutes at a time when the weather is around freezing. This is the defrost cycle in action. If you notice this type of behavior from your heat pump, it’s working just like it should. That said, we do recommend using a backup heat source during the cold months for when temperatures drop into the extremes.

Heat Pump Repair & Replacement in Central NJ

Since 1977, Arctic Air Conditioning has been providing heat pump repair and heat pump replacement in Middletown, Princeton and surrounding areas in central New Jersey. For more help figuring out the reason behind your heat pump icing up, contact us today!

Testimonials
5 Rating |

”The technician was professional And on time.”

- Sandra P
5 Rating |

”Found Arctic Air through a Yelp request. They were the most responsive company as they replied to my request for a quote the fastest. The technician (Scott) was sent out…”

- Boris Pierre-Antoine
5 Rating |

”Very honest fast reputable company to deal with and very professional.”

- Jason Mateyak
5 Rating |

”Service man was well knowledge and friendly and was in no hurry to get the job done and answer questions we no attitude. Good Job!!!”

- Michael Ciaccio
5 Rating |

”The techs were all great. They came out on here different days and were clean, thorough, explained anything and everything, as well as double and triple checked items when needed.…”

- Daniel Boris
5 Rating |

”The technician Dante a ride was very polite... I feltl comfortable with him right away with his professionalism and desire to get to the root of the problem and which…”

- Uncle Robert Boxing
4 Rating |

”Always on time and their techs are always courteous.”

- Bernard Corr
5 Rating |

”Tony their service technician was very knowledgeable. He found the problem sent for the replacement part and had us back up and running very quickly. Great company 👌”

- Robert Birmele
5 Rating |

”Tech was very friendly, safe and professional”

- Greg Colen
5 Rating |

”They are very friendly and professional., I love that they send a text with the picture of the technician.”

- Gena Wagner
5 Rating |

”I’ve been using Arctic Air for almost 20 years now. This review is for Tony P. and I would give him 6 stars if I could. I can’t say enough…”

- Vito Ruisi
5 Rating |

”Sam was great . Analyzed the problem very quickly and fixed it promptly.The price of the service call reasonable and I will recommend Arctic Air Conditioning to all my family…”

- Chard Red
5 Rating |

”Part 2 of 2 to change parts on HWH to meet township construction code.”

- Robert Martino
5 Rating |

”Very happy with our recent Furnace and AC installation for our home. Arctic Air came highly recommended to us, and has a solid reputation in the area. They provided knowledgeable…”

- Novo Novo
5 Rating |

”I was so nervous to have my air conditioner repaired. It wasn’t blowing cold air. They came and fixed it within a half an hour with minimal expense. They were…”

- Stacey Pacelli
5 Rating |

”First time using Artic...called for a problem with AC unit, they were here within the hour, made the repairs and Kylie was very knowledgeable on helping us with all the…”

- Dawn Shapses
5 Rating |

”Moving to another town, we were happy to learn Arctic Air also covers this geographic region. We asked for an A/C system check on a system which we believe the…”

- Steven Myers
5 Rating |

”Selling real reviews Yelp, google We write reviews, promote your companies Guaranteed confidentiality and quality of reviews All accounts of real users, with reviews and friends Real people Yelp accounts,…”

- David B.
5 Rating |

”Where another company (who actually installed our air conditioning system) failed us and sent a tech who essentially had a mental breakdown in our living room, Arctic sent Eric -…”

- Marc Feingold
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