How to turn on a MRCOOL mini split AC without a remote

While the remote control is the primary way to operate a MRCOOL mini split system, there may be times when you need to turn it on or make adjustments without the remote. This could happen if you’ve misplaced the remote, the batteries are dead, or the remote itself is malfunctioning.

Fortunately, all MRCOOL mini split units come equipped with a manual control button, which is typically located behind a small panel on the indoor air handler unit. This button allows you to turn the unit on or off and switch between different operating modes.

Let’s walk through the easy process of turning on your MRCOOL mini split system with the manual controls.

If you need any replacement parts for your MRCOOL AC unit, you can use your model number to find what you’re looking for at AppliancePartsPros.com. We also have thousands of free DIY troubleshooting and repair guides to help you fix your AC yourself. 

Disclaimer: The information provided in this article is based on general service manuals and may not apply to your specific appliance model. While we strive to offer helpful advice for DIY appliance repairs, variations in models and configurations can lead to differences in troubleshooting steps, error codes and part replacements. For the most accurate guidance, we strongly recommend consulting the technical sheet for your specific appliance model.

How to turn on a MRCOOL unit sans remote

Access the manual control button

1. On the front or side of the indoor unit, you should see a small panel or cover that can be gently opened or removed. This panel conceals the manual control button.
2. Carefully release the clips or locks that hold the panel in place, and open it just enough to reveal the manual control button underneath.

Important: Be gentle when opening the panel, as some models may have fragile plastic clips or hinges. Consult the user manual if you’re unsure about how to access the manual control button.

How to use the manual control button

1. Use a non-conductive object like a pen or pencil to gently press the manual control button once. This should turn on the unit and initiate the cooling process.
2. Wait a few moments. Depending on the model, it may take a few seconds for the compressor and indoor blower to start up. You should hear the system turn on and begin circulating cool air into the room when it does.
3. Check the default settings. Without a remote, the mini split will likely default to a preset temperature, typically around 25°C (77°F), and operate in cooling mode. These settings can vary depending on the model and manufacturer.
4. Adjust the settings as needed. If you need to change the temperature or switch to a different mode (such as heating or dehumidifying), you’ll need to use the manual control button again. Consult the user manual or the manufacturer’s website for specific instructions on how to cycle through different settings using the manual button.
5. Turn off the unit when you’re ready by simply pressing the manual control button once. The unit should power down and stop cooling the room.

Additional tips & considerations

While the manual control button is a convenient way to operate your Mr. Cool mini split without a remote, keep the following in mind:

You’ll be restricted without a remote

By using the manual control button, you’ll be limited to basic functions like just turning the unit on or off and switching between cooling and heating modes. Advanced features like timers, fan speed adjustments, and energy-saving modes may not be accessible without the remote.

You can buy a universal remote 

If you’ve lost your original MRCOOL remote, consider purchasing a universal remote control that’s designed to work with mini split systems. These remotes can often be programmed to operate your specific unit and provide access to all available features and settings.

Know how to maintain & troubleshoot your unit

If the manual control button doesn’t seem to be working, or if the unit isn’t responding as expected, refer to the user manual or contact MRCOOL customer support for further assistance. 

Don’t forget to maintain your unit by cleaning the air filters to help prevent issues and keep it running smoothly.

Final thoughts

Thank you for reading! We hope this guide helped you find out how to control your MRCOOL unit without the remote control.

Remember – while the manual control button is a helpful workaround, it may limit your access to advanced features and settings. If you plan to use the manual control for an extended period, consider investing in a universal remote or contact MRCOOL customer support.

If you have any other appliance repair needs or projects, don’t hesitate to explore our other troubleshooting guides and videos. 

If you need replacement parts or some extra help with ordering them, grab your model number and head over to AppliancePartsPros.com, where you can chat with a pro, read our DIY blog and more.

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