Comprehensive Mitsubishi Mini-Split Remote Control Troubleshooting Tips

At Richair Comfort Solutions, we understand that a malfunctioning remote control can be a frustrating experience for Mitsubishi mini-split system owners. As a trusted ductless mini-split installation company, we want to help you resolve these issues before scheduling a potentially costly service call. This guide will walk you through a series of systematic checks and adjustments to help restore proper communication between your remote and the mini-split unit.

Mitsubishi Mini-Split System: Remote control Tips

Before scheduling a potentially costly service call, it's essential to perform some basic troubleshooting steps to identify and resolve issues related to your Mitsubishi mini-split remote.

Step 1: Check for Obstructions

Mitsubishi mini-split remotes typically use infrared technology to communicate with the indoor unit. As such, it is crucial to maintain a clear line of sight between the remote's infrared lens and the receiver on the unit. Begin by removing any objects that may be blocking the path of the infrared signal. This includes furniture, curtains, or decorative items that might have been inadvertently placed in front of the unit.


Step 2: Assess the Remote's Range
Infrared remotes have a limited effective range, usually within 10-20 feet of the indoor unit. If you are attempting to control your Mitsubishi mini-split from a distance greater than the specified range, the remote may fail to communicate with the unit. Move closer to the mini-split and try operating the remote again. If the issue resolves, consider repositioning the indoor unit or adjusting your location when using the remote.


Step 3: Inspect and Replace Batteries




Weak or depleted batteries are a common cause of remote control malfunctions. If your Mitsubishi mini-split remote is unresponsive or inconsistent, even after ensuring a clear line of sight and proper range, it's time to check the batteries. Remove the batteries from the remote and inspect the contacts for any signs of corrosion. If present, clean the contacts with rubbing alcohol and a soft cloth. Replace the batteries with new ones, paying close attention to the correct polarity as indicated in the battery compartment.



Step 4: Understanding Mitsubishi Mini-Split Remote Symbols





Familiarizing yourself with the symbols on your Mitsubishi mini-split remote can help you effectively control your unit and troubleshoot issues. Here are some common symbols and their meanings:


  • Power Button: Turns the unit on or off
  • Mode Button: Selects the operating mode (Cool, Heat, Auto, Dry, or Fan)
  • Temperature Buttons: Adjusts the set temperature up or down
  • Fan Speed Button: Changes the fan speed (Low, Medium, High, or Auto)
  • Vane Control Button: Adjusts the airflow direction
  • Timer Buttons: Sets the unit to turn on or off at a specific time
  • Energy Saving Button: Activates energy-saving features
  • i-see Sensor Button (if applicable): Enables the i-see Sensor for enhanced comfort and efficiency


If you encounter unfamiliar symbols or have questions about specific functions, consult your user manual or contact Richair Comfort Solutions for guidance. If you want to know about the modes on your remote here is a guide.



Step 5: Reset the Remote and Mini-Split Unit
If the previous steps have not resolved the issue, you may need to reset your Mitsubishi mini-split remote or the indoor unit itself. The specific reset procedure can vary depending on the model, so consult your user manual for detailed instructions. In most cases, resetting the remote involves removing the batteries, waiting a few seconds, and then reinstalling them. To reset the indoor unit, locate the reset button (usually on the unit's front panel) and press it gently with a pin or paper clip. 


Step 6: Professional Assistance

If you have exhausted all troubleshooting steps and your Mitsubishi mini-split remote continues to malfunction, it may be indicative of a more severe issue with the remote or the indoor unit's receiver. At this point, it is recommended to seek professional assistance from the experts at Richair Comfort Solutions. Our certified technicians possess the expertise and tools necessary to diagnose and resolve complex problems within your mini-split system.



Mitsubishi award-winning Diamond Contractor

Serving New York and New Jersey



At Richair Comfort Solutions, we prioritize regular maintenance and prompt troubleshooting to ensure the optimal performance and longevity of your Mitsubishi mini-split system. By following this step-by-step guide, you can address common remote control issues and avoid unnecessary service calls. However, if the problem persists despite your best efforts, do not hesitate to contact Richair Comfort Solutions for a thorough assessment and repair. Remember to clean your mini-split unit regularly and replace the filters as specified in the user manual to prevent future issues and maintain a comfortable indoor environment. Trust Richair Comfort Solutions for all your ductless mini-split installation and maintenance needs.


Have a question about ductless mini splits? We're here to help! Fill out the form below with your question and email address, and one of our knowledgeable team members will get back to you promptly with expert tips and advice.

Field is required Incorrect email
Field is required
Your message was sent successfully
Sorry, your message was not sent

Was This Article Helpful?