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    Why is My Car AC Cycling On and Off?

    Why is My Car AC Cycling On and Off?

    Why is My Car AC Cycling On and Off?

    Why is My Car AC Cycling On and Off?

    A perfectly functioning air conditioning system is a prerequisite for pleasant and comfortable driving, especially in areas with a warm climate like Brisbane, Redland City, and Bayside. Having your car AC cycling on and off can be a frustrating experience, and getting to the root of it is Keepin Cool Auto Air Conditioning’s business. We offer comprehensive services to the likes of Mobile Car AC Regassing, Mobile Car AC Repairs, and Mobile Car AC Service that ensure your vehicle’s air conditioning works smoothly. In this post, we discuss why your car AC might be cycling on and off, possible reasons, and solutions to these issues.

    How the Car Air Conditioning System Works

    Before we delve into the problems, it’s important to understand how the complex system of car air conditioning works:

    1. Compressor: As the heart of the system, the compressor draws in refrigerant gas, compresses it, and circulates it throughout the air conditioning system.
    2. Condenser: This component transforms the high-pressure gas from the compressor into liquid form, expelling heat in the process.
    3. Expansion Valve: The liquid refrigerant is then subjected to a sudden drop in pressure at the expansion valve, causing it to expand and cool rapidly.
    4. Evaporator: The now cool refrigerant in gas form absorbs heat from the car’s interior, providing a refreshing blast of cold air.

    Understanding these basic components aids in diagnosing issues such as intermittent AC operations.

    Possible Reasons Your Car AC is Cycling On and Off

    Several factors can cause your car AC to cycle intermittently:

    1. Low Refrigerant Levels: If your car AC system lacks sufficient refrigerant gas, it can cause the compressor to switch on and off sporadically. Keepin Cool Auto Air Conditioning offers Mobile Car AC Regassing services to restore the refrigerant level.
    2. Faulty Thermostat: A faulty thermostat can interfere with the correct operation of your car’s air conditioning system, causing irregular AC cycling.
    3. Clogged Orifice Tube: A clogged orifice tube may impede the smooth flow of the refrigerant, which can lead to the AC cycling on and off.
    4. Problems with the Compressor Clutch: The compressor clutch is responsible for engaging and disengaging the AC compressor. If it is damaged, it may not be able to maintain the compressor engagement, resulting in irregular cycling.


    Underlying Causes in More Detail

    To better understand the issues that can lead to your car AC cycling on and off, let’s delve deeper into some common underlying causes.

    Low Refrigerant Level

    In a well-functioning car aircon system, the compressor and evaporator create a pressure differential that moves the refrigerant through the system. If the system’s refrigerant level is low, this pressure differential is disturbed, causing the system to malfunction. The compressor may, as a result, intermittently turn off as it can’t maintain the necessary pressure.

    Intermittent cooling could be an indication of refrigerant leakage. This is not the kind of issue that you can dismiss – the longer you neglect it, the more severe it will become, possibly leading to permanent damage to your car aircon system’s components. Keepin Cool Auto Air Conditioning offers Mobile Car AC Regassing services to ensure your aircon’s refrigerant level is just right.

    Faulty Thermostat

    Sometimes, a faulty thermostat might be the cause of the problem. The thermostat senses the temperature of the refrigerant. If it’s not in optimal condition, it might misjudge this temperature, leading to improper signals being sent to the compressor, causing it to cycle on and off.

    Clogged Orifice Tubes

    The orifice tube in your car aircon system, which is part of the liquid line, controls the refrigerant flow in the system. If this is clogged, the refrigerant flow is disturbed. This faulty operation can result in the compressor cycling on and off. A prompt cleaning or replacing of the orifice tube can help resolve the problem.

    Problems with the Compressor Clutch

    The compressor clutch controls the compressor, dictating when it should engage or disengage. When functioning correctly, it continuously engages and disengages in a rhythmic cycle. It should be noted that excessive cycling could indicate an issue with the clutch. It might not be creating enough pressure due to wearing down or breaking mechanically. In such instances, a Possible Vehicle Air Conditioning repair is necessary.

    Importance of Regular Aircon Servicing

    Just as you wouldn’t ignore to service your car’s engine regularly, the same applies to your car’s air conditioning system. It needs regular maintenance to function optimally, especially in Brisbane’s sizzling climate.

    Services that Keepin Cool Auto Air Conditioning offer like Car Aircon Regas, Vehicle Air Conditioning Service, and Auto Aircon servicing, ensure that your car aircon unit is in top shape. Regular car air conditioning maintenance doesn’t just keep the system performing at its best but also helps identify potential problems early before they become major, expensive issues.


    There could be several causes for your car AC cycling on and off. Identifying them might seem like a daunting task, but with the right professionals like Keepin Cool Auto Air Conditioning, it’s an easy fix. Whether your car requires a Mobile Car AC Service or a Car Air Conditioning Repair, you can rely on us for all your car aircon needs, offering services across Brisbane, Redland City, and Bayside.


    1. How can I prevent my car AC from cycling on and off?
    Regular maintenance and inspection, particularly before the summer heatwave hits, can prevent unexpected issues with your car AC’s functionality.

    2. What will happen if I continue driving with my car AC cycling on and off?
    Neglecting this issue can result in major damages to the compressor and other system components which will incur hefty repair costs.

    3. Are older cars more likely to have AC cycling issues?
    Though AC cycling issues can happen in any vehicle, older cars are generally more prone to these issues due to worn out components.

    4. How long does it typically take to fix a car AC that’s cycling on and off?
    The repair time can vary based on the underlying issue. Some repairs can be done in a few hours, while others might require more extensive work.

    5. Can extreme weather affect my car AC’s performance?
    Extreme heat can put more strain on your car’s AC system and may impact its performance. Regular servicing can help mitigate weather-related issues.


    Solutions to Your Car AC Cycling On and Off

    At Keepin Cool Auto Air Conditioning, we offer a variety of Car Aircon Repairs and Car Aircon Service solutions to address the issues mentioned above:

    • Recharging Vehicle Aircon: Our expert team can recharge your car AC system with the appropriate type and amount of refrigerant gas as per the manufacturer’s recommendations.
    • Thermostat Replacement: If it turns that your thermostat is indeed faulty, swift replacement will fix the intermittent cycling issue.
    • Orifice Tube Cleaning or Replacement: Whether it’s simply cleaning the orifice tube or a complete replacement, Keepin Cool has got you covered.
    • Compressor Clutch Repair: Our team can repair or replace, if necessary, the compressor clutch of your car air conditioning system ensuring smooth and consistent operation.


    Car AC Cycling On and Off conclusion

    Experiencing your car AC cycling on and off can be frustrating, but understanding the potential causes and working with qualified professionals can provide an efficient solution. At Keepin Cool Auto Air Conditioning, we offer comprehensive services to Brisbane, Redland City, and Bayside vehicle owners from Mobile Car AC Regassing to Car Aircon Repairs so we can assure your cars are always at their cooling best.


    1. How frequently should my car AC system be serviced?
    We recommend getting your car AC system serviced annually to ensure optimal performance and longevity.

    2. Can low refrigerant levels damage my car AC system?
    Yes, continuously operating your car AC with low refrigerant levels can cause severe damage to the compressor.

    3. What type of refrigerant does my car AC system use?
    The type of refrigerant used in the system is usually according to the manufacturer’s recommendations and can be R12 for older cars or R134a and R1234yf for newer models.

    4. Can I refill the refrigerant in my car AC system myself?
    While there are DIY kits available, it’s best to let professionals like Keepin Cool handle the task to prevent any potential damage.

    5. What are the signs of a faulty car AC compressor?
    Signs of a faulty compressor can include weak or no cold airflow, loud noises when the AC is on, and leaking fluids.


    Car AC Cycling On and Off

    Car AC Cycling On and Off



    The air conditioning system in your vehicle plays a pivotal role, especially in the sweltering Brisbane heat. At Keepin Cool Auto Air Conditioning, we do more than just AC service—we offer Mobile Car AC Service and convenience like none other. What truly sets us apart is our quick SMS booking, making our service accessible and customer-friendly.


    Keepin Cool is the go-to spot for all things AC, from Mobile Car AC Repairs to Car Aircon Service. Regardless of your needs, we have solutions to all your car cooling problems. Our suite of services includes:

    Car Air Conditioner Compressor Repair:

    Car Air Conditioner Compressor Repair involves addressing issues with the compressor in your vehicle’s AC system. The compressor, responsible for cooling air inside the car, might require a diagnosis for faults such as leaks, unusual noises, or inefficient cooling. A typical repair may involve simply fixing leaks, but often a full compressor replacement is needed. This process should be handled by a skilled technician to ensure proper execution, potentially including the refilling of refrigerant and replacement of other damaged components.

    Car Air Conditioner Hose Repair:

    Car Air Conditioner Hose Repair focuses on fixing issues with the hoses in your vehicle’s AC system, which transport refrigerant and connect its components. Damage or wear to these hoses can result in refrigerant leaks, impacting the efficiency of your AC system. Skilled technicians diagnose and repair or replace damaged hoses, ensuring a smoothly functioning, optimally cooling car air conditioner for a comfortable driving experience.

    Car Air Conditioner Leak Testing:

    Car Air Conditioner Leak Testing is a process used to detect any leaks within your vehicle’s AC system. It involves inspecting the system components, including hoses and the compressor, for signs of refrigerant failure. Technicians use special tools and substances, such as UV dye or an electronic leak detector, to find leaks efficiently. This service is crucial for ensuring the optimal performance and longevity of a car’s air conditioning system.

    Car Air Conditioner Inspection:

    Car Air Conditioner Inspection is a comprehensive check of your vehicle’s AC system. It involves evaluating the system components including compressor, condenser, hoses, and vents, and assessing the quality of the cool air output. It also involves checking for any leaks, strange sounds, foul smells, or failure to cool effectively. Regular inspection by skilled technicians is important to maintain the system’s optimal performance and address potential issues early.

    Car Air Conditioner Regassing:

    Car Air Conditioner Regassing is a process of replenishing the refrigerant gas in your vehicle’s AC system, which is essential for cooling the air. Over time or due to leaks, the refrigerant might diminish, resulting in less efficient cooling. In a regassing service, technicians first evacuate any remaining old refrigerant, perform a leak test, and then recharge or ‘regas’ the system with new refrigerant. It’s crucial to enhance the cooling efficiency and the overall performance of your car’s AC system.

    Car Air Conditioner Repairs:

    Car Air Conditioner Repairs encompasses a range of services aimed to address and fix issues with your vehicle’s AC system. These may include diagnosing and rectifying problems such as inefficient cooling, strange noises, foul smells, leaks, or system component failures. From hose repair, compressor replacement, to refrigerant regassing, it involves a host of repair operations. Regular and professional AC system repairs are important to maintain a comfortable vehicle interior environment.

    Car Air Conditioner Maintenance:

    Car Air Conditioner Maintenance refers to regular check-ups and upkeep measures for your vehicle’s AC system. It includes inspecting and cleaning the system components such as the compressor, condenser, evaporator, filters, and hoses; checking the system for leaks and addressing them; and ensuring optimal refrigerant levels. Routine maintenance carried out by skilled technicians can increase the efficiency, longevity, and reliability of your car’s air conditioning system, providing a more comfortable driving experience.


    We value your time and believe in fast, efficient communication. Our SMS booking system gives you a swift and hassle-free platform to schedule Vehicle Air Conditioning Service at your convenience.

    Versatile Mobile Services

    Our mobile services cover everything from Mobile Car AC Regassing to repair work, ensuring you don’t have to endure a sweaty drive to the service centre. We bring our services right to your doorstep in Brisbane, Redland City, or Bayside.

    Quality Services Across The Spectrum

    Customer satisfaction is more than just completing repairs—it’s about offering comprehensive care. Our range of services guarantees that your car AC system is in top shape, and we’re never more than an SMS away.

    Service That Cares

    Our experienced team understands the climate in Brisbane and knows how important it is to have reliable air conditioning in your vehicle. We treat every car with meticulous care, ensuring you can count on us for your Car Aircon Repairs and beyond.

    Car AC Cycling On and Off conclusion

    The right choice for your car AC needs is simple—Keepin Cool Auto Air Conditioning. With our convenient SMS booking, expert services spread across Brisbane, Redland City, and Bayside, we are here to keep your vehicle cruising in comfort.


    1. What are the services covered under car air conditioner maintenance?
      In our car air conditioner maintenance, we cover inspection, leak testing, and necessary repairs.
    2. Does Keepin Cool offer mobile car AC repair services in Bayside?
      Yes, we offer a wide range of mobile car AC services across Brisbane, Redland City, and Bayside.
    3. How can I book an appointment using SMS?
      You can text us about your preferred date, time, and the type of service needed. We will confirm your appointment shortly.
    4. How quickly can you respond to a car air conditioner repair?
      With our efficient SMS booking, we assure prompt response times and try our best to resolve the issue as swiftly as possible.
    5. What measures do you take to ensure the quality of your car air conditioning service?
      We ensure quality by employing experienced professionals and using top-grade equipment. Plus, we treat each car as if it’s our own—we spare no detail in our service.



    When scheduling Mobile Car AC Services or needing Vehicle Air Conditioning Repairs in Brisbane, it’s never been easier with Keepin Cool Auto Air Conditioning! Our service allows you to use convenient online booking – making it easy to solve your “Car Aircon Repairs” or “Car Aircon Regas” needs.

    What You Need, When You Need It

    In today’s fast-paced world, finding time to pick up the phone or our online Book Appointment system aids you in syncing your hectic schedule with our availability, simplifying your life.

    24/7 Booking Capabilities

    Problems don’t abide by business hours – so why should solutions? Through our site, you can Book Appointment anytime, whether for Mobile Car AC Repairs or Vehicle Air Conditioning Regas.

    Service Across Brisbane

    Servicing everywhere from Brisbane, Redland City, and Bayside, we ensure that quality Vehicle Air Conditioning Service is seamlessly available for everyone everywhere. No matter your air conditioning needs, we have got you covered.

    Professional Quality You Can Trust

    At Keepin Cool Auto Air Conditioning, we prioritize your convenience without compromising on quality. When you Book Appointment, you guarantee yourself expert level Mobile Car AC Service..

    Here you will find a list of some vehicle types we carry out and Car Aircon Regas Service. If your vehicle type is not on the list, please give us a call:

    Please call to discuss your specific requirement, or if you like free advice on your vehicle air conditioning problem, then we would be most pleased to talk with you. Alternatively, ask a question using the Contact Form.