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Style 1:

The Date of Manufacture is in the first three digits of the serial number and represent the year and month of production:



89 D 00588D

89 Year



Style 2:

The Date of Manufacture is in the first and second digits of the serial number and represent the year and month of production:



W K M M079898

K Month (October)

M Year (2003)


A January

B February

C March

D April

E May

F June

G July

H August

J September

K October

L November

M December


A 1992

B 1993

C 1994

D 1995

E 1996

F 1997

G 1998

H 1999

J 2000

K 2001

L 2002

M 2003

N 2004

P 2005

R 2006

S 2007

T 2008

V 2009

W 2010

X 2011

Y 2012

Z 2013

Mitsubishi Electric is a leading global manufacturer of air conditioning systems, known for its innovation, energy efficiency, and high-performance HVAC solutions. Here are key points about Mitsubishi air conditioning:

1. **Product Range**:
   - Mitsubishi offers a diverse range of air conditioning systems, including ductless mini-split systems, multi-split systems, VRF (Variable Refrigerant Flow) systems, and commercial air conditioning units.
   - Their products cater to both residential and commercial markets, providing solutions for various cooling and heating needs.

2. **Energy Efficiency**:
   - Mitsubishi air conditioning systems are renowned for their energy efficiency, with many models featuring high Seasonal Energy Efficiency Ratio (SEER) ratings.
   - Some of their models are ENERGY STAR® certified, indicating superior energy performance and potential savings on utility bills.

3. **Features and Technology**:
   - Mitsubishi incorporates advanced technology in their air conditioning systems, such as inverter-driven compressors, which adjust the compressor speed based on cooling demand, leading to precise temperature control and improved energy efficiency.
   - Many units feature zone control capabilities, allowing users to adjust temperatures in individual rooms or zones independently for personalized comfort and energy savings.
   - Mitsubishi systems often include advanced filtration options, such as nano-platinum filters or electrostatic anti-allergy enzyme filters, to improve indoor air quality.

4. **Quiet Operation**:
   - Mitsubishi air conditioning units are designed for quiet operation, utilizing advanced fan designs and sound-dampening technologies to minimize noise levels indoors and outdoors.

5. **Warranty**:
   - Mitsubishi typically offers a 5-year limited warranty on parts and 7-year limited warranty on compressors for residential systems, with longer warranties available for commercial applications.
   - Extended warranty options and additional coverage plans may be offered through authorized dealers.

6. **Manufacturing and Support**:
   - Mitsubishi Electric products are manufactured with a strong emphasis on quality and reliability, ensuring long-term performance and customer satisfaction.
   - The brand has a network of certified dealers and service providers worldwide, offering professional installation, maintenance, and support services.

7. **Smart and Connected Solutions**:
   - Many Mitsubishi systems are compatible with smart home technology, allowing users to control their air conditioning units remotely via mobile apps or integrate them with home automation systems for enhanced convenience and energy management.

8. **Sustainability**:
   - Mitsubishi Electric is committed to sustainability, focusing on eco-friendly refrigerants and energy-efficient technologies to minimize environmental impact.

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