Why Your Mitsubishi Aircon Stopped Working

Although Mitsubishi air conditioning units have maintained a strong reputation in the market for numerous years, it's important to acknowledge that no technology is immune to occasional issues.

Whether your Mitsubishi air conditioner isn't providing heat or is failing to cool the air as expected, there are various other potential factors that may cause your Mitsubishi air conditioner to cease functioning properly.

That's precisely why we're here to assist you in diagnosing issues, identifying root causes, and offering solutions to prevent these problems from recurring.

Why is your Mitsubishi aircon not working?

Just like with any technology, there can be numerous factors contributing to the malfunction of your Mitsubishi air conditioner. This is precisely why we're here to assist you in troubleshooting the issue before resorting to contacting a technician.

Here is a list of potential issues that could cause problems with your Mitsubishi air conditioner:

1. clogged air filter due to dust and dirt.
2. An outdoor unit that hasn't been properly maintained.
3. Insufficient refrigerant levels
4. A tripped circuit breaker.
5. Refrigerant leakage.
6. Overloaded electrical outlets.
7. Mechanical failures within the system.
8. Malfunctions in the remote control.
9. Problems with the thermostat.
10. Air conditioner is not producing cold air.

How do you fix an air conditioner that won’t turn on?

If your Mitsubishi AC is not functioning correctly, here are five potential solutions you can consider:

1. Pay attention to any error codes displayed on your AC unit.
2. Attempt to reset your entire AC system by turning it off and then back on.
3. Verify the power supply to the AC unit.
4. Inspect your circuit breaker for a possible blown fuse.
5. Check the power source of your Mitsubishi air conditioner's remote control, as it may have run out of battery power.

How do I reset my Mitsubishi air conditioner?

Step 1: Turn off your indoor unit.

Step 2: Locate the breaker in your home and switch it to the 'off' position.

Step 3: Set a timer for 30 seconds.

Step 4: Turn the breaker back 'on.'

Step 5: Operate your remote control.

However, it's important to note that while these steps may resolve the issue for some households, they might not work for everyone. In such cases, understanding the symbols on your Mitsubishi air conditioner becomes essential for troubleshooting and finding a solution.

How do I get my Mitsubishi air conditioner to work?

In addition to understanding the symbols on your Mitsubishi air conditioner, whether it's from Mitsubishi Electric or Mitsubishi Heavy Industries, it's crucial to be familiar with the fault codes. Fault codes provide valuable information by using blinking lights to indicate the specific problem with your AC. Here are five common Mitsubishi Heavy Industries fault codes that you may have come across:

1. E5 - Signal Transmission Error
2. E16 - Indoor Fan Motor Error
3. E36 - Overheating Compressor
4. E38: Outdoor Air Temperature Sensor Error
5. E42: Current Cut

By gaining knowledge about your air conditioning unit, including these fault codes, you can more easily pinpoint why your Mitsubishi Aircon has stopped working and expedite the process of finding a solution.

Pros and Cons of Mitsubishi Aircon

Pros

• Energy Efficiency
• Quiet Operation
• Reliability
• Advanced Features

Cons

• Higher Initial Cost
• Complex Installation
• Maintenance Costs
• Limited Availability

Differences Between Mitsubishi Aircon and Heil Aircon

Mitsubishi

Mitsubishi is known for its advanced technologies and energy-efficient features, such as inverter compressors, zoning capabilities, and air quality enhancements.

Heil

Heil offers reliable and efficient central air conditioning systems but may have fewer advanced features compared to Mitsubishi's ductless systems.

Alternative to Mitsubishi Aircon

Daikin

Daikin is a well-known global HVAC manufacturer offering a wide range of air conditioning solutions, including split systems, ductless mini-splits, and central air conditioning units. They are known for their energy-efficient technology and reliability.

How do you prevent future issues?

1. Clean Your Condenser: Regularly cleaning the condenser coil enhances AC performance by preventing heat from getting trapped by dust and grime, which can result in reduced cooling efficiency and higher energy consumption, leading to increased electricity bills.
2. Clean Your Filter: Like the condenser, maintaining clean AC filters is essential for better air quality and improved air circulation. Dirty filters can harbour dust, grime, and bacteria, potentially leading to mould growth that may compromise your family's health.
3. Responsibly Control AC Usage: Minimise wear and tear on your AC by using it judiciously. Consider using Mitsubishi's ducted air conditioning, which allows you to schedule automatic on/off times.
4. Schedule Regular Servicing: Routine maintenance and servicing are vital to sustaining the efficiency and proper functioning of your AC system.
5. Maintain Your Remote Control: Ensure your AC remote control, whether for a Mitsubishi split system or Mitsubishi Heavy Industries, remains in good condition for your AC to operate effectively.
6. Replace Air Conditioning Vents: Replacing air conditioning vents helps enhance air quality, overall comfort, and the efficiency of your AC in your home.

Read Also: Troubleshooting lG Air Conditioner

How do you know when it’s time to get a new air conditioner instead?

You can typically tell it's time to replace your current air conditioner when it has exceeded 10 years of service. Older units often begin to experience more frequent issues, such as duct leaks or malfunctioning fans, and these problems tend to occur at inconvenient times. Replacing an ageing air conditioner can help improve efficiency, reduce the frequency of breakdowns, and ensure a more reliable and energy-efficient cooling system for your home.

Conclusion

Maintaining and troubleshooting your air conditioning system is essential for optimal performance and longevity. Regular cleaning of the condenser and filters, responsible usage, scheduling routine servicing, and keeping the remote control in good condition are crucial steps to ensure your AC functions effectively. Additionally, being aware of fault codes and understanding the symbols on your unit can aid in quick issue identification.

When your air conditioner is more than a decade old and exhibits frequent breakdowns, it may be time to consider replacing it for improved efficiency and reliability. Proper care and maintenance of your air conditioning system can lead to a more comfortable and healthy indoor environment.