If your Mitsubishi air conditioner suddenly stops working, there might be an expensive challenge ahead. But before you call your technician, try a full system reset.
Resetting a Mitsubishi air conditioner is a skill every owner should have. It is not rocket science and doesn’t take up a whole day. It resets within five minutes, and that too without any tools. This blog post is a step-by-step guide to resetting a Mitsubishi air conditioner. Keep reading to restore your air conditioning system to its original condition.
When Do You Need a Complete System Reset?
Mitsubishi air conditioners are known to be reliable and top-performing, but they can glitch. Below are a few common signs that indicate a reset is needed:
- The indoor unit doesn't start even when the remote control works.
- The system doesn't cool properly.
- The unit blows warm air instead of cold
- The unit doesn't start after a power outage.
- The system turns on and off by itself.
In most cases, none of these situations requires you to call a repair service. A system reset resolves most of these issues without any external help. However, if the issue remains unresolved after a reset, ask for professional help.
How to Reset a Mitsubishi Air Conditioner
There are multiple ways to reset a Mitsubishi air conditioner.
Method 1: Using the Remote Control
This is the easiest and fastest way to reset your air conditioning system. You won’t have to touch the main power. Most models from both Mitsubishi Electric and Mitsubishi Heavy Industries support it.
- Point the remote at the indoor unit’s infrared receiver.
- Press and hold the Power button for up to 10 seconds. You may need to hold the Stop button on some models.
- A single beep from the indoor unit indicates a successful reset signal.
- Release the button and wait for 30 seconds.
- Press the Power button again to turn the system on. If the air conditioner is back to its performing condition, you are good to go. Otherwise, try Method 2.
Method 2: Unplugging the Unit
This method is highly effective for wall units only.
- Turn the AC off using the remote control.
- Unplug the power cord from the outlet and wait for 10 minutes.
- Plug the unit back in.
- Turn on the AC using the remote and test every function.
The waiting period is crucial, and most owners fail to do it. Allow your system some rest to ensure a successful full-system reset.
Method 3: Using the Circuit Breaker
This method works for hardwired systems, such as ductless split systems and central units.
- Find your dedicated AC breaker on the main electrical panel and flip it off.
- Allow up to 10 minutes of rest.
- Flip the breaker back to turn it on.
- Return to the room and turn the air conditioner on using the remote. Your system may take a minute or two to power up, so don’t worry.
Post-Reset Performance Checks
After a successful reset, perform performance tests to ensure your Mitsubishi air conditioning system is in top working condition. Here are a few steps you can use to test your unit:
- Set the temperature 5 degrees below.
- Change the fan speed to High.
- Wait for at least 10 minutes for the system to fully function.
- Try switching between different modes.
If your AC is performing smoothly and the remote control responds straight away, you have done a successful reset.
How Often Should You Reset Your Mitsubishi Air Con?
Typically, a reset shouldn’t occur frequently. If you find yourself resetting your air conditioning system every few days, you need technical expertise. Frequent issues indicate a dying battery or a failing control board.
Final Thoughts
Knowing how to reset a Mitsubishi air conditioner is like knowing how to restart a frozen computer. Using the remote control/circuit breaker methods takes only 10 seconds. You can easily reset a Mitsubishi air conditioner at home, and that too without any cost.
Before you hire an HVAC partner, try pressing the button yourself. Chances are, your system will begin to cool quickly with even distribution.
If issues don’t resolve after a reset, you need professional help. Surrey Air is a family-run company with reliable HVAC servicing as the reason for its high demand. Keep an eye out for signs that indicate a bigger problem, and call us straight away.
