Taunton and Raynham AC Tune-Up Service
The last thing residents in Taunton and Raynham, MA, need is a sudden AC failure during extreme heat. The best way to avoid that is by scheduling seasonal AC maintenance from the pros at Cotti Johnson HVAC, Inc. We have over 75+ years of experience and stand by our work with a 100% satisfaction guarantee.
AC Tune-Up Services
Premier Air Conditioning Unit Maintenance Experts in Taunton & Raynham, MA!
In the heat of Greater Boston, our air conditioning units work hard. They endure significant strain and require regular maintenance to sustain peak efficiency and effectiveness. If it’s been a while since your AC system was serviced, it’s wise to have it inspected to ensure optimal performance. At Cotti-Johnson, our skilled professionals offer comprehensive AC tune-up services to rejuvenate your air conditioning system.
Indicators You Need an AC Tune-Up
Recognizing when your air conditioner requires attention isn’t always straightforward. However, certain signs should prompt you to reach out to Cotti-Johnson:
- Unusually loud noises emanating from the unit
- Inadequate cooling performance or airflow
- Higher-than-normal energy bills
- Unexpected indoor humidity levels
What’s Included in AC Tune-Up Service?
When you choose Cotti-Johnson for an AC tune-up, expect a comprehensive inspection, thorough cleaning, and any necessary repairs. Our technicians meticulously examine your system, checking the thermostat, refrigerant levels, blower motor, and other vital components to ensure peak performance. We also scrutinize all electrical connections, lubricate moving parts, and optimize efficiency. With our AC tune-up service, your system will operate reliably and efficiently.
Benefits of AC Tune-Up Service
Regular maintenance and tune-up services can extend the lifespan of your air conditioner, reduce energy costs, mitigate the risk of future costly repairs, and maintain consistent indoor comfort. Investing in a professional AC tune-up from Cotti-Johnson is a smart and cost-effective decision!
Reach Out to Cotti-Johnson for AC Tune-Up Service
If it’s been a while since your last AC service, don’t delay – reach out to Cotti-Johnson for a professional AC tune-up. Our team ensures your system runs smoothly and efficiently throughout the summer months. With over 30 years of experience, fully trained and licensed technicians, and a 100% satisfaction guarantee, you can trust us to deliver exceptional service. Contact us today to schedule reliable and trustworthy service!
You can trust our expertise for an AC installation that will provide all the comfort you want at an affordable price. Call us today!


Seasonal AC Maintenance & 21 Point Inspection Checklist in Southeastern Massachusetts
Cotti Johnson HVAC, Inc. is your trusted local partner for AC cleaning, testing, and maintenance. We perform a thorough 21-point diagnosis and inspection of your system to ensure safety and efficiency.
21-Point HVAC Professional AC Maintenance & Safety Checklist
When HVAC technicians perform seasonal maintenance or a safety inspection on an air conditioner, they follow a comprehensive checklist to ensure the system runs efficiently, safely, and reliably. Here’s a detailed 21-point checklist commonly used by professionals:
- Check and Replace Air Filter: Dirty filters restrict airflow and reduce the efficiency of your system. The tech will inspect and replace the filter if needed.
- Inspect Thermostat Operation: Ensure the thermostat is calibrated correctly and communicating properly with the AC system.
- Inspect Electrical Connections: Ensure all electrical connections are tight to prevent shorts, overheating, and fire hazards.
- Measure Voltage and Amperage: Check the electrical draw on motors and compressors to ensure they’re operating within safe ranges.
- Test Safety Controls: Verify that all safety switches (e.g., high- and low-pressure switches) are functioning correctly.
- Clean and Inspect Condenser Coil: Remove dirt and debris from the outdoor coil to improve heat exchange and system efficiency.
- Inspect and Clean Evaporator Coil: Look for dirt buildup that can reduce cooling power and airflow. Clean if accessible.
- Check Refrigerant Level: Ensure refrigerant is at the proper charge. Low refrigerant can indicate a leak and reduce efficiency.
- Inspect Refrigerant Lines: Look for signs of wear, damage, or insulation breakdown on suction and liquid lines.
- Test Capacitors: Verify that the start/run capacitors meet the manufacturer’s specifications.
- Inspect and Test Contractor: Examine the contactor for pitting, burning, or wear that could affect electrical flow.
- Lubricate Moving Parts (if applicable): Lubricate motors and bearings to reduce friction and extend equipment life (many modern motors are sealed and don’t require lubrication).
- Inspect and Clean Condensate Drain: Ensure the drain line is clear of clogs to prevent water leaks and mold growth.
- Inspect Drain Pan: Check for cracks or rust that could lead to water damage if the system backs up.
- Test System Start-Up and Shutdown: Verify that the system starts, operates properly, and shuts off under thermostat control.
- Measure Temperature Differential: Measure the difference between supply and return air to ensure proper cooling performance.
- Inspect Ductwork for Leaks or Obstructions: Look for visible damage or disconnected sections that could reduce system efficiency.
- Check Blower Motor and Wheel: Ensure the blower is clean and operating correctly to maintain strong airflow.
- Inspect Outdoor Unit for Debris: Clear away leaves, grass, or objects that could restrict airflow to the condenser.
- Verify System Is Operating Within Manufacturer Specs: Compare system performance against standard operational specs for optimal function.
A ductless mini-split AC system can provide you with all the benefits of a central air system without the cost or hassle of installing ducts.
Expert AC Cleaning & HVAC Safety Check in Bristol & Plymouth Counties
During an HVAC cleaning and safety check, our professional technician thoroughly inspects, cleans, and tests your HVAC system to ensure it’s running safely and efficiently. They’ll start by checking the thermostat, replacing the air filter, and inspecting electrical connections for signs of wear or damage.
The technician will clean key components, including the condenser and evaporator coils, blower motor, and condensate drain, to improve airflow and system performance. They also test refrigerant levels, examine the ductwork, and verify that all safety controls are functioning correctly.
Membership Plan for Regular AC Tune-Up Service
The best way to ensure your air conditioner is ready for whatever Mother Nature throws at it is to enroll in our Cotti Care Membership plan. This plan includes perks like preventive maintenance, savings on equipment repairs, faster service, a 23-point inspection on all equipment, standard size 1” filters on HVAC visits, and more.
Here are some of our current limited time offers, call for additional details. All specials are subject to availability, some terms apply, some terms based on credit approval. Offers cannot be combined.
Contact Cotti Johnson HVAC, Inc. in Taunton, MA at 508-301-1831 and get your air conditioner in tip-top shape.


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