Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Maxdoosoon Choi

Gaithersburg,MD

Summary

Driving from Washington D.C. to Baltimore, visiting over 20 different Marriott Hotels. Serving and maintenance HVAC package and split system, kitchen equipments, laundry equipments, water heaters.


Hardworking HVAC professional offering proven history in managing, commercial and industrial HVAC needs with skillful and efficient repairs. Adept at testing and inspecting systems to isolate faults and implement repair plans. Effectively align systems to meet manufacturer specifications and maximize performance.

Overview

8
8
years of professional experience
1
1
Certification

Work History

HVAC Technician

Marriott
09.2019 - Current
  • Performed troubleshooting on HVAC systems to determine root cause of issues.
  • Conducted maintenance service on HVAC systems to increase life expectancy of equipment and prevent costly repair work.
  • Investigated major malfunctions and breakdowns of heating and air-conditioning systems and used troubleshooting to determine causes.
  • Traveled to job sites for both scheduled and emergency appointments.
  • Repaired and replaced motors, bearings and belts.
  • Kept accurate records of time and materials used for each job to compile into service reports.
  • Worked overtime, holidays and weekends to accommodate company needs.
  • Inspected and tested refrigeration systems, safety devices and controls to determine proper functionality.
  • Read blueprints, wiring diagrams, piping schemes and engineering specifications to diagnose and repair units.
  • Increased longevity of HVAC systems by performing preventive maintenance.
  • Repaired, replaced and serviced both residential and commercial HVAC equipment, components, and wiring.

HVAC Technician

CroppMetcalfe
04.2017 - 08.2019
  • Performed troubleshooting on HVAC systems to determine root cause of issues.
  • Conducted maintenance service on HVAC systems to increase life expectancy of equipment and prevent costly repair work.
  • Investigated major malfunctions and breakdowns of heating and air-conditioning systems and used troubleshooting to determine causes.
  • Traveled to job sites for both scheduled and emergency appointments.
  • Repaired and replaced motors, bearings and belts.
  • Kept accurate records of time and materials used for each job to compile into service reports.
  • Increased longevity of HVAC systems by performing preventive maintenance.

HVAC Technician

One Hour Heating And AC
11.2015 - 03.2017
  • Performed troubleshooting on HVAC systems to determine root cause of issues.
  • Conducted maintenance service on HVAC systems to increase life expectancy of equipment and prevent costly repair work.
  • Investigated major malfunctions and breakdowns of heating and air-conditioning systems and used troubleshooting to determine causes.
  • Traveled to job sites for both scheduled and emergency appointments.
  • Repaired and replaced motors, bearings and belts.
  • Kept accurate records of time and materials used for each job to compile into service reports.

Education

HVAC - HVAC Installation And Repair

Lincoln College of Technology
Columbia, MD
11.2015

No Degree - General Studies

Montgomery College
Rockville, MD
05.2005

Skills

  • Recovering and Recycling
  • Technical Troubleshooting
  • Refrigeration System Evacuation
  • Electrical and Pneumatic Controls
  • Package and Split Systems
  • Variable Speed Drives

Certification

Maryland HVAC Journeyman License

CFC Universal License

Timeline

HVAC Technician

Marriott
09.2019 - Current

HVAC Technician

CroppMetcalfe
04.2017 - 08.2019

HVAC Technician

One Hour Heating And AC
11.2015 - 03.2017

HVAC - HVAC Installation And Repair

Lincoln College of Technology

No Degree - General Studies

Montgomery College

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Maxdoosoon Choi