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June 16, 2025
Minnesota and Wisconsin weather puts HVAC systems to the test year-round. From brutal winters to hot, humid summers, your heating and cooling system needs to perform reliably.
Minnesota and Wisconsin weather puts HVAC systems to the test year-round. From brutal winters to hot, humid summers, your heating and cooling system needs to perform reliably. But just like any mechanical system, HVAC units can run into trouble. At Finken, we help homeowners and businesses stay ahead of the most common HVAC issues with expert diagnostics, repairs, and preventative maintenance.
Here are the five most common HVAC problems we see—and what you can do about them.
When air filters are clogged with dust, pet hair, and debris, airflow is restricted.
Replace filters every 1–3 months. Finken offers maintenance plans that include filter checks to keep your system running clean.
Your thermostat acts as the control center for your HVAC system. When it’s malfunctioning, your system can behave erratically.
We diagnose and replace faulty thermostats and can upgrade you to smart models for better energy control.
Low refrigerant levels prevent your air conditioner from effectively cooling your home.
Finken's licensed technicians safely locate and repair leaks, recharge refrigerant, and ensure your system is sealed and efficient.
HVAC systems depend on electrical components to function, including capacitors, relays, and wiring.
Our HVAC experts inspect and replace faulty electrical parts to restore safe and reliable operation.
Outdoor condenser units and indoor evaporator coils accumulate dirt over time, reducing heat transfer.
We clean and maintain coils during annual tune-ups, improving performance and system longevity.
Most HVAC issues can be avoided with regular maintenance and prompt repairs. At Finken, we offer customized service plans and emergency support to keep your system running smoothly—whether you're in St. Cloud, Baxter, or Melrose.
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