Francisco Segura
Corona
Summary
Experienced HVAC Technician with 5 years of hands-on experience in residential and light commercial systems, including installation, maintenance, and troubleshooting. Skilled in diagnosing airflow issues, refrigerant system performance, and electrical components to ensure reliable and efficient system operation. Experienced with RTU systems, mini-splits, heat pumps, swamp coolers, exhaust fans, air handlers, gas furnaces, and straight cool systems. Committed to delivering safety standards, and providing excellent customer service.
Overview
19
19
years of professional experience
1
1
Certification
Work History
Commercial HVAC Service Technician
AMS Anderson Air Conditioning
Fullerton, CA
04.2024 - 01.2026
- Performed diagnostics and repairs on RTUs and split systems, improving system uptime.
- Repaired compressors, motors, sensors, refrigeration components, and retrofit units.
- Completed EPA-compliant leak repairs and system recharging.
- Retrofit R22 units to R407C or R438A refrigerants.
- Inspected belts, motors and electrical connections.
- Diagnosed Refrigerant leaks.
- Tested capacitors, contactor, and relays.
- Diagnosed and repaired HVAC systems, ensuring optimal performance and customer satisfaction.
- Performed routine maintenance on commercial air conditioning units to enhance reliability and efficiency.
- Proactively identified potential hazards during site visits for corrective action before they became problems.
Residential HVAC Technician / HVAC Installer
20/20 Plumbing and Heating, Inc.
Riverside, CA
10.2017 - 04.2024
- Reading wiring diagrams and troubleshooting electrical components like circuits, voltage, and motors.
- Safely recovering, recycling, and charging refrigerants according to environmental standards.
- Installation and repair of traditional outdoor condensers and indoor air handlers/furnaces.
- Identifying the root cause of malfunctions in complex heating, cooling, and furnace.
- Measuring, cutting, and sealing ductwork to ensure optimal airflow and energy efficiency.
- Installing and programming smart thermostats and modern, app-compatible HVAC models.
- Filled out detailed work orders for each job completed.
- Investigated major malfunctions and breakdowns of heating and air-conditioning systems and used troubleshooting to determine causes.
- Worked on Multi-family and Single-family homes.
Residential HVAC Installer
Multi Mechanical
Corona, CA
10.2015 - 12.2016
- Installed residential and light commercial HVAC systems including ductwork and heat pumps.
- Located and marked pipe positions, hole passages, and duct connections in walls and floors.
- Utilized pressure gauges and soap-and-water solutions to test pipe and tubing joints for leaks.
- Worked overtime on weekends to accommodate company needs.
- Repaired and replaced faulty motors, blowers, switches and compressor units.
- Worked on multifamily HVAC units.
HVAC Technician
B/E Aerospace
Anaheim, CA
03.2007 - 09.2008
- Recovered refrigerant in compliance with EPA regulations.
- Interpreted blueprints to fabricate and braze aircraft environmental control units.
- Repaired and replaced HVAC components for aviation-grade systems.
- Performed precision brazing and assembly work for aircraft components.
Education
Welding & Brazing Coursework -
Fullerton College
Fullerton, CASkills
- Troubleshooting and Diagnostics
- Heat pump and furnace servicing
- Leak detection and repair
- Brazing copper lines
- RTU Service
- Electrical troubleshooting contactors, capacitors, relays
- Refrigerant charging and recovery
- Preventive maintenance
- Measuring superheat and subcooling
- Gauge manifold operation
- Thermostat installation and wiring
- Hvac system installation
Accomplishments
Successfully installed, repaired, and maintained residential and commercial HVAC systems with a 98% customer satisfaction rate.
Diagnosed and repaired HVAC system issues involving refrigerant, airflow, and electrical components, restoring proper system performance.
Performed accurate refrigerant charging using superheat and subcooling measurements to ensure optimal system efficiency.
Expertly handled refrigerant recovery and leak repair, ensuring full compliance with EPA regulations.
Communicated system issues and repair solutions clearly to customers, ensuring professional servicer and satisfaction.
Certification
EPA Universal
Commercial HVAC
Introduction to Commercial systems
Using a Multimeter
Basic wiring
Complete chiller systems
Chiller systems routine maintenance
Air handling and distribution
Air handling and distribution routine maintenance
Troubleshooting air handling units
Computer room air conditioning
Commercial refrigeration systems
Package rooftop units
Package rooftop units routine maintenance.
Ice machine basics.
PTAC units basics.
Walk-in freezers basics
Control systems basics.
Heat and temperature basics.
Thermostat 101
Superheat and Subcooling.
VRF
Brazing and Soldering.
Temperature Measurements.
Timeline
Commercial HVAC Service Technician
AMS Anderson Air Conditioning
04.2024 - 01.2026
Residential HVAC Technician / HVAC Installer
20/20 Plumbing and Heating, Inc.
10.2017 - 04.2024
Residential HVAC Installer
Multi Mechanical
10.2015 - 12.2016
HVAC Technician
B/E Aerospace
03.2007 - 09.2008
Welding & Brazing Coursework -
Fullerton College