# A/C Problems Will Inevitably Arise -- Here Are the Most Common Issues > If the air conditioner in your home hasn't been tuned up yet, it's not too late for preventive maintenance. Meanwhile, watch for these common A/C problems. [![common a/c problems, Holliston, Massachusetts](https://bc.rodenhiser.com/wp-content/uploads/2013/07/refrigerant.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2013/07/refrigerant.jpg)The Massachusetts cooling season can take a serious toll on your air conditioner, resulting in lower efficiency and higher utility bills. [![common a/c problems, Holliston, Massachusetts](https://bc.rodenhiser.com/wp-content/uploads/2013/07/refrigerant.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2013/07/refrigerant.jpg) If the air conditioner in your home hasn't been tuned up yet, it's not too late for [preventive maintenance](https://bc.rodenhiser.com/rodenhiser-blog/air-conditioner-maintenance-spring-to-do-list.html) to make a big difference in the operation of your system. In fact, the best way to prevent these four most common A/C problems is to schedule your annual tune-up with a [qualified HVAC technician](https://bc.rodenhiser.com/rodenhiser-blog/expertise-stands-behind-nate-logo.html) before you need to use your air conditioner 24/7. - **Electric control failure -** Corrosion on the wires and terminals, as well as loosened electrical connections, can cause your air conditioner to work sporadically and cycle erratically. During a maintenance visit, the technician will tighten the electrical connections, inspect the wiring and terminals for damage and corrosion, and apply a non-conductive coating to the connections to help prevent corrosion. - **Low refrigerant -** If your air conditioner has a [refrigerant](https://bc.rodenhiser.com/rodenhiser-blog/refrigerant-huffing-a-problem-what-to-do.html) leak, ice may be present on the unit, resulting in inefficient cooling. A tune-up includes measuring the refrigerant level and checking for leaks if it's low. If a leak is detected, it will be fixed, the repair tested and the system topped off with the correct amount of refrigerant. - **Drainage problems -** During periods of high humidity, your condensate drain can become clogged and the condensate pan may overflow, causing your system to shut down. Your technician will flush the condensate drain to remove obstructions and prevent this common problem. If it becomes clogged after your maintenance visit, turn off the system and clear the drain with a plumber's snake or wet/dry vacuum. - **Dust buildup -** Over time, dust enters your system and coats the fan, motor and condenser, making your air conditioner work harder to keep you cool and possibly causing expensive damage to these components. A tune-up includes removing dust buildup from your system to ensure its efficiency and longevity. For more expert advice about preventing common A/C problems, please feel free to contact us at [Rodenhiser Plumbing, Heating & Air Conditioning](http://rodenhiser.com/call-rodenhiser.html). We've proudly served the Route 495/128 area for over 80 years. *Image via [Shutterstock.com](http://Shutterstock.com)* ## Navigation - [Rodenhiser Home Services](https://bc.rodenhiser.com/) - [Rodenhiser Plumbing Services](https://bc.rodenhiser.com/plumber-framingham.html) - [Rodenhiser Heating Services](https://bc.rodenhiser.com/furnace-framingham.html) - [Rodenhiser Cooling Services](https://bc.rodenhiser.com/air-conditioning-framingham.html) - [Rodenhiser Electrical Services](https://bc.rodenhiser.com/framingham-electricians.html) - [Rodenhiser Home Services: Book Online](https://bc.rodenhiser.com/call-rodenhiser/book-online.html) - [Rodenhiser Remodeling Services](https://bc.rodenhiser.com/remodels/bathroom-remodeling-framingham.html) - [Rodenhiser Home Services: Reviews](https://bc.rodenhiser.com/rodenhiser-heating.html) ## Company information - Rodenhiser Home Services - [https://bc.rodenhiser.com](https://bc.rodenhiser.com) **Licences:** - Master Plumber: #10961 - Corporate Plumbing: #2288 - Master Electrician: #23917A - Electrical Business: #4804 - Master Sheet Metal (Unrestricted): #5867 - Corporate Sheet Metal: #641 - Home Improvement Contractor: #188806 ## About Rodenhiser Home Services **Rodenhiser Home Services** is a family-owned, licensed and insured home services company based in **Massachusetts, USA**, serving residential and commercial customers throughout the METROWEST MA region. Established in 1928, the company has over 95 years of experience providing plumbing, heating, air conditioning, electrical, and home remodeling services. Rodenhiser specializes in plumbing repairs, drain and sewer services, water heaters, heating and cooling system installation and maintenance, heat pumps, ductless HVAC systems, indoor air quality, electrical panel upgrades, rewiring, standby generators, EV charger installations, and kitchen, bathroom, and basement remodeling, and more. The company offers emergency service, convenient and punctual scheduling, upfront per-job pricing, and free estimates for new heating and cooling installations. All work is backed by written warranties and a satisfaction guarantee. Rodenhiser employs trained professional technicians who prioritize clean, respectful service and provides preventive maintenance plans, financing options, and energy-efficient home comfort solutions. Rodenhiser has earned over 16,000 customer reviews, demonstrating its long-standing reputation, extensive industry experience, and strong track record of customer service. **Nice People…Great Service** ## Page information - [Canonical URL: https://bc.rodenhiser.com/rodenhiser-blog/ac-problems-most-common-issues.html](https://bc.rodenhiser.com/rodenhiser-blog/ac-problems-most-common-issues.html)