
At Boelcke Heating & Air Conditioning, we want our customers to feel informed and prepared… not left sweating through the unknown. Here are a few of the most common AC problems, what might be causing them, and what steps you can take next.
Warm Air Instead of Cool
- Thermostat settings: Make sure the thermostat is set to “cool” and the temperature is set lower than the current room temp.
- Refrigerant problems: Low refrigerant levels or leaks can keep the system from cooling properly.
- Compressor failure: This vital component is responsible for circulating refrigerant. If it’s malfunctioning, cooling will suffer.
Next step: Don’t ignore the problem or keep running the system. Contact a licensed technician to diagnose and correct the issue before it worsens.
Weak or Limited Airflow
- Dirty or clogged filters: A simple issue that, when ignored, can lead to bigger problems. Changing or cleaning your filters is something you can do yourself, but if you have any concerns, you should contact an HVAC professional.
- Ductwork leaks or obstructions: Cracked, disconnected, or blocked ducts can drastically reduce airflow.
- Blower fan issues: If the fan motor is failing or covered in dust, airflow will be restricted.
Next step: Replace the filter if you haven’t done so recently. If that doesn’t help, it’s time for a professional inspection to pinpoint the root cause.
Strange Noises Coming from the Unit
- Loose parts or debris: Something may be lodged in the fan or another moving component.
- Motor or bearing wear: Mechanical components can wear out or seize up.
- Refrigerant issues: Bubbling or hissing sounds may point to a refrigerant leak.
Next step: Turn off the unit to prevent further damage and schedule a service appointment. The sooner it’s addressed, the better.
Unpleasant Odors
- Mold or mildew: Moisture buildup in the ducts or drain pan can lead to microbial growth.
- Electrical issues: A burning smell could signal wiring problems or overheating components.
Next step: An HVAC professional can check for mold growth, clean components, and inspect electrical connections safely. Do not attempt to fix an electrical issue yourself, as this could be dangerous.
Frequent Cycling
- Incorrect thermostat placement
- Clogged filters
- Oversized system
- Low refrigerant
Next step: Frequent cycling is a sign your system is under strain. Schedule a diagnostic appointment to uncover the cause and prevent potential long-term damage.
Don’t DIY… Call Boelcke!
While some minor maintenance tasks like changing the filter or checking your thermostat settings are safe for homeowners, most AC problems are best left to trained professionals. Attempting to repair an HVAC system without the right tools and training can worsen the issue or create a safety hazard.
At Boelcke Heating & Air Conditioning, we’ve been keeping families in Southwest Michigan cool and comfortable since 1963. If your AC is acting up, don’t wait. Give us a call, and we’ll take care of the rest.
Once the summer weather returns to our area, people start to rely on their home’s air conditioning system to keep them cool and comfortable. For homeowners who either don’t have ductwork throughout their home (such as those with radiant heat) or have added space to their home that is not connected to the duct system, keeping cool often means relying on window air conditioning units.
Boelcke is proud to provide dependable ductless mini-split repairs throughout Southwest Michigan. As these systems have become more popular in our area, we offer a range of complimentary services to our customers. So while you may need emergency repair today, in the future we can keep your ductless mini-split in optimal condition with preventive maintenance, and eventually replace it when you’re ready for an upgrade. Some of our other services include:
As a full-service contractor, our technicians have many years of experience installing various HVAC systems. Whether you’re looking for a single ductless unit for one room, or multiple units for your entire home, we can meet your needs. We’ll help design the best configuration to ensure the total comfort of you and your family. And, should you need any other HVAC services, we can help with that too. We’re pleased to offer all the services and products you need to stay comfortable year-round, including: