What Is Freon and How It Affects Your Cooling System
Freon is the trade name for the refrigerant that lets your air conditioner move heat out of your home. It absorbs heat indoors, carries it outside through the coils, releases it, and repeats the cycle. During a humid west-central Minnesota summer, a properly charged system keeps your home comfortable while running efficiently. When Freon runs […]
What Does Hold Mean on a Thermostat? Hold vs Run Buttons Explained

The hold button on a thermostat locks in a single temperature and overrides your programmed schedule until you cancel it; the run button does the opposite, returning the thermostat to its automatic schedule. In west-central Minnesota, where furnaces run hard for months below zero, knowing when to hold and when to run keeps your home […]
9 Warning Signs You Need to Replace Your Air Conditioner
Is your air conditioning acting up? Knowing the signs it’s time to get an AC system inspection can save you from costly repairs. Strange noises from the compressor, poor airflow in the condition of your car, and rising energy bills at the right time are red flags that shouldn’t be ignored. Regular checks ensure your […]
High Head Pressure in HVAC Systems – Causes, Effects, and Fixes
High head pressure is the refrigerant-side pressure that climbs above your HVAC system’s normal operating range, forcing the compressor to work harder to move heat outdoors. The usual causes are dirty condenser coils, an incorrect refrigerant charge, restricted airflow, and high outdoor temperatures. Across west-central Minnesota’s humid summers, when an air conditioner runs hard for […]
Ozone for HVAC Mold Control in Minnesota Homes

Northern Services Today helps west-central Minnesota homeowners control mold in their HVAC systems, and ozone treatment is one of the most effective tools when it is used correctly. In our humid summers and tightly sealed winter homes around Olivia, Willmar, and Hutchinson, moisture collects inside ducts and vents, giving mold spores the damp, dark conditions […]
Top 5 HVAC Filter Boxes for Efficient Airflow in Minnesota Homes
Finding the right HVAC filter box, including several furnace filters like standard furnace filters, cheap filters, and effective filters, is crucial for maintaining efficient airflow in Minnesota homes. With harsh winters and humid summers, a good filter, such as furnace filters or washable air filters, can make all the difference in home HVAC filters and […]
Understanding HVAC Service Valves: A Homeowner’s Guide to Types & Maintenance
Understanding HVAC service valves is crucial for every homeowner. These small but mighty components, including hvac valves, hvac solenoid valves, hvac zone valves, and hvac gas valves, play a big role in your heating and cooling systems. They help control the flow of refrigerant through HVAC zone valves and solenoid components, ensuring your ventilation systems […]
HVAC Closet Door Ideas That Save Space in Small Homes
An HVAC closet door has to do two jobs at once: hide the furnace or air handler and let it breathe. In small homes, the best options are space-savers that also move air – louvered bifold doors, sliding barn doors, vented pocket doors, and slatted cabinet fronts. Each one keeps the unit reachable for filter […]
The Ultimate Guide to HVAC Control Board Troubleshooting: Fix Common Issues
HVAC systems can be a headache when they malfunction. The control board is often the culprit in common HVAC problems, but troubleshooting it doesn’t have to be daunting despite common HVAC issues and HVAC system malfunctions in air conditioners. This ultimate guide to HVAC control board troubleshooting breaks down complex problems into simple steps for […]
10 Essential HVAC Duct Sizing Tips for Minnesota Homes
Did you know that nearly 50% of homes in Minnesota, especially those with certain size duct in their residential HVAC duct blog, experience uneven heating and cooling due to ventilation air ducts not being adequate for the square feet? Proper HVAC air ducts sizing is crucial for energy efficiency and comfort in relation to home […]