Want to know how you can fix your Mitsubishi air conditioning unit? Booth AC can help!
Booth Air Conditioning knows that even the most reliable systems, like Mitsubishi air conditioners, can run into issues. Knowing how to interpret fault codes can save you time, stress, and money.
In this blog post, Booth Air Conditioning will explain the top five most common Mitsubishi air conditioning fault codes and provide insights on how to address these issues effectively.
Most Common Mitsubishi Air Conditioning Fault Codes
Fault Code E21
Fault: The filter panel of the indoor unit is not latched (FDT only)
Impact: When the filter panel is not latched correctly, it can lead to improper airflow and decreased cooling efficiency. Ensuring that the panel is properly secured is a simple yet effective way to maintain optimal performance. Regularly check the filter panel to ensure it is correctly positioned and free from obstructions.
Fix: If you encounter the E21 code, inspect the filter panel for any misalignment or debris hindering it from closing properly. Cleaning the panel and ensuring it is securely latched can often resolve the issue.
Fault Code 6607
Fault: Communication issue – no response back from the unit whilst the system is operational
Impact: This problem can arise from several factors, including outdated software or faulty wiring connections. Addressing communication issues promptly can prevent further complications.
Fix: If the 6607 code appears, consider resetting the unit or contacting a professional technician to diagnose and resolve the issue effectively.
Fault Code E59
Fault: High condensate level – drain pump failure or blockage in the drain
Impact: If not addressed promptly, this issue can lead to water leakage and potential damage to your unit.
Fix: If you encounter the E59 code, inspect the drain line and pump for any visible issues. Clearing blockages and ensuring the pump is operating efficiently can resolve the problem. If the issue persists, seek professional help to prevent further complications.
Fault Code U6
Fault: Compressor over current – carry out inverter output test and electrical checks to the compressor
Impact: This issue can impact your unit’s cooling efficiency and may indicate underlying air conditioning problems.
Fix: If the U6 code appears, it is advisable to consult a professional air conditioning technician in Manchester, such as Booth Air Conditioning. Addressing the issue promptly can prevent further damage and ensure your unit operates efficiently.
Fault Code P8
Fault: Abnormal pipe/coil temperature – no temperature change at the indoor unit after 9 minutes of operation. General causes are outdoor unit tripping, problems with refrigerant charge or lack of airflow at the indoor unit. TH2 faulty or not mounted correctly.
Impact: This issue can affect your unit’s cooling capacity and may require immediate attention.
Fix: If you encounter the P8 code, inspect the system for signs of refrigerant leakage and verify the positioning of thermistors. Addressing these issues promptly can prevent further complications and restore your unit’s cooling efficiency.
Contact Us
Booth AC is a leading expert in air conditioning maintenance in Manchester and its surrounding areas.
Our trusted maintenance services are relied upon by over 350 organisations each year to care for thousands of systems.
For more information on the most common Mitsubishi air conditioning fault codes, contact Booth Air Conditioning by calling 01706 769282 or emailing sales@booth-ac.com.
