AC Freeze Up in Sacramento



What Causes an Air Conditioner to Freeze Up?

Is your AC unit frozen? Nothing good comes from an AC freeze up. It is expensive to fix and has the potential of causing more damage to the unit. Also, a freeze-up means that you will, for some time at least, pay for energy bills while your AC unit isn’t working how it should. Such a problem needs to be fixed fast. What then causes an AC freeze up in Sacramento? Our Sacramento heating and air specialists share the top reasons that could cause this issue in your home. 

Poor Airflow

Warm air from your house blows over your AC’s coils. The air keeps the coils from freezing while also cooling the air inside your home. If this fails, the coils will start to freeze over due to the super cold refrigerant inside them. Poor airflow can be caused by a number of reasons. They include: 

A Collapsed Duct 

The air inside your house is directed to the coils through a series of ducts. Any obstruction inside these ducts will prevent the warm air from reaching your coils. This will lead to an ac freeze up in Sacramento.

Bad Blower Motor

The blower motor blows air towards the coils. It also provides additional pressure to the air, which maintains a consistent rush of warm air whenever the AC unit is running. If the blower motor stops running, then air stops flowing and freezing starts. 

Low voltage to the Fan 

Sometimes, the problem will not be the AC unit but your electricity. Our friends at McQuillan Brothers, an HVAC company in St. Paul, explains that if the blower or fan will not run effectively if they are not receiving enough power. This will lead to an ac freeze up. 

A Clogged Air Filter 

The air filter is situated between the outdoor unit and the interior of your house. It traps impurities and allows clean air to enter your home. It also keeps the compressor coils clean. A dirty air filter prevents consistent airflow over the coils. This is why the air filter needs to be changed every 30-90 days. Contact Gilmore today for a Sacramento AC tune-up.

Blocked Coils 

An ineffective air filter leads to dust accumulation on the coils. The dust settles on the dump coils and cakes from the combination of dump surface and the dust. This creates an insulator effect, which prevents the warm air from reaching the coils and increases the cold temperatures inside the coils. 

Insufficient Refrigerant 

The refrigerant is responsible for transferring heat from the indoor unit to the outdoor unit where it is then dispersed. Its movement is aided by the compressor (outdoor unit), which compresses the gas turns it into a liquid. 

The liquid is then pushed through the circuit and into the house where it meets the warm air and turns into a gas as it absorbs heat energy. 

Low refrigerant means that the refrigerant will not absorb enough warm air to turn it into a gas. This ultimately leads to the freezing of the condensate on the coils, which will then form ice cubes and make its way to the outdoor unit. 

What to do when your Placerville AC Freezes Up

The first step should always be to switch off your thermostats. This stops the system and prevents the refrigerant from flowing. You can also turn on your fan to increase airflow, which will then aid in melting the ice. 

Call a Sacramento AC service company to fix the issue. Make sure they know what they are coming to fix. You can mention the ice so they can treat it as the emergency it is. 

Get the best Emergency Service 

Is your AC acting up? Contact us today. If you’ve been searching for heating and air conditioning services near me, look no further! Enjoy timely and professional 24/7 HVAC services with Gilmore Heating, Air, and Plumbing. 

Understanding Air Conditioner Efficiency Ratings



Air conditioning annually consumes more than 6% of all the electricity produced in the United States, costing homeowners more than $29 billion annually. That’s why understanding your air conditioning system’s efficiency is a matter of common sense.

Your air conditioner makes your home cooler by moving heat from inside your home to the outside. The compressor motor uses most of the energy making this happen. Compared to the energy consumed by the compressor, your air condition system produces about 3 times the cooling power. But how efficient is your air conditioner?

Seasonal Energy Efficiency Ratio

The most common measure of efficiency is SEER, the Seasonal Energy Efficiency Ratio–you’ve likely seen the SEER mentioned on the bright yellow “EnergyGuide” stickers that are found on appliances such as refrigerators and water heaters, as well as air conditioners. SEER is a measure of how many BTUs a system produces while consuming one watt of electricity—the higher the SEER number, the more efficient the air conditioner. Just as ‘miles per gallon’ is used to compare car efficiency, SEER allows you to compare the energy efficiency of various AC units.

As of 2015, air conditioners sold in California must now have a minimum SEER rating of 14. However, higher efficiency units of 18 and even 26 SEER are available. But keep in mind, a higher SEER unit will not blow colder than a lower SEER unit. A high SEER rating means that the air conditioner will deliver the same cooling power for less money. For example, a 16 SEER system can save an estimated $2,000 in annual operating costs.

Other AC Efficiency Ratings to Consider

Depending on your climate, you may want to consider other efficiency rating measures. For example, in hot, dry climates, you should look at the Energy Efficiency Ratio (EER). The EER is calculated assuming a steady outside temperature of 95 degrees Fahrenheit, while SEER is calculated using a temperature range of 65 to 104 degrees Fahrenheit.

EER is a better standard to use in areas that tend to be very hot—95 degrees or higher—for long periods of time, as EER gives a sense of how well an AC works at peak operating conditions. On the other hand, if the average summer temperature in your area is between 80 and 90 degrees, then SEER will be more relevant for you.

If you live in a hot, humid climate, you need to consider how well a system can dehumidify indoor air. We perspire to provide natural cooling through the evaporation of perspiration from our skin. Drier air, up to a point, improves the comfort you experience indoors. Generally speaking, air conditioners are designed to create a 40% to 60% relative humidity in your home.

There’s No One-Size-Fits-All Efficiency Rating

There’s no ‘best’ SEER rating for everybody. Your individual AC operating habits, the size of your home, the condition of your home’s ductwork, and your personal savings goals all have a role in determining the optimal system efficiency choice for your air conditioning system.

If you have questions about how to select an air conditioner that’s ideal for your home, call the experts at Gilmore. We offer free consultations, and can perform the measurements and calculations necessary to find the unit that will save you the most money, while providing the level of comfort you desire.