# Hearing Noises From the Air Conditioner? What They’re Trying to Communicate > Here's some sound advice on what air conditioner noises you need to pay attention to. [![air conditioner noises](https://bc.rodenhiser.com/wp-content/uploads/2014/08/listeningnoises-300x200.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2014/08/listeningnoises.jpg)No one wants their A/C to shut down in the middle of a heat wave in Massachusetts. If it does, you'll probably find the temperatures unbearable. Making sure your A/C is running efficiently will prevent the problem and [save you money in the long run](https://bc.rodenhiser.com/rodenhiser-blog/efficient-ac-operation-will-save-big.html). But what if you suddenly start hearing A/C noises? [![air conditioner noises](https://bc.rodenhiser.com/wp-content/uploads/2014/08/listeningnoises-300x200.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2014/08/listeningnoises.jpg) Your unit is a set of components that needs to work together properly to do the job. When something is amiss, the A/C is sure to let you know about it. Here's some sound advice on what A/C noises you need to pay attention to. ## What Do Certain A/C Noises Mean? - **Clanking, clunking, thumping or rattling** is usually caused by loose components moving against other parts within the air conditioner. These can be internal hardware or a loose screw or fan pulley. It could also indicate that the A/C is in need of lubrication, especially if you hear a squeak also. - **Squealing, growling and rattling** are similar to squeaking. It generally means that inside components have lost lubrication or that a belt inside the unit has slipped. - A **constant clicking** inside means that a failed component such as a relay, thermostat or control switch is trying to activate itself. - **Loud knocks or thumps** can also happen. These could mean there's a missing screw somewhere, a belt may need to be tightened or it could be something more serious. These sounds need attention immediately. The faster you call for repair, the less damage the object will do to internal parts. A technician can let you know if it's repairable or [if it's time to replace the A/C](https://bc.rodenhiser.com/rodenhiser-blog/replace-the-ac.html). Be sure to contact [Rodenhiser Plumbing, Heating & Air Conditioning](http://rodenhiser.com/call-rodenhiser.html). They've been serving your neighbors in the Route 495/128 area of Massachusetts since 1928. *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/hearing-noises-air-conditioner-theyre-trying-communicate.html](https://bc.rodenhiser.com/rodenhiser-blog/hearing-noises-air-conditioner-theyre-trying-communicate.html)