An HVAC service technician resume should name the systems you worked on and show what you did when one failed. Describe what you checked, what you repaired, and how you verified the result. For a call that needed a return visit, show what you found and what the next person needed to know.
Sofia Delgado, her employers, her school, and her work history are fictional. She worked as a paid maintenance helper before becoming a residential service technician. Use the example to describe your own equipment, duties, and qualifications.
Sofia Delgado
HVAC Service Technician | Residential Heating and Cooling
(828) 555-0167sofia.delgado@example.comAsheville, NC
Summary
Residential HVAC service technician working on ducted heat pumps and central air conditioners since 2023. Troubleshoots electrical and airflow problems, repairs refrigerant leaks on residential split systems, and documents completed repairs and return visits. Holds EPA Section 608 Type II certification.
Experience
- Diagnose electrical faults with wiring diagrams and a multimeter. On a no-cooling call, identified a failed contactor in the outdoor unit, replaced it, and verified that the system cycled in cooling mode. (note 1)
- Investigate weak airflow on ducted heat pumps. Measure external static pressure with a digital manometer, compare the readings with the manufacturer's blower table for that unit, and record the findings in the service ticket.
- Use an electronic leak detector to locate leaks on residential split systems. Complete repairs and record the leak location, the amount of refrigerant recovered, and the results of post-repair leak and operating checks.
- Record the equipment model, test findings, and parts needed when a repair requires another visit. Tell the homeowner what work remains and send the parts details to the office.
- Perform seasonal maintenance on heat pumps and central air conditioners. Check filters and condensate drains, verify thermostat response, and note issues that require separate service.
- Replaced filters and cleaned accessible condensate drains during scheduled maintenance visits under a lead technician's direction.
- Recorded equipment model and serial numbers and noted completed maintenance tasks for the lead technician's review before the crew left the site.
Education
Certifications
ESCO Institute
Skills
Residential heat pump maintenance, Central air conditioning repair, Multimeter testing, Wiring diagram interpretation, External static pressure measurement, Refrigerant leak detection, Service ticket documentation
- Note 1:
Sofia shows the repair worked: the system cycled in cooling mode after she replaced the contactor.
- Note 2:
The credential gives the exact certification type, the certifying organization, and the month it was earned.
Show what you did on a service call
“Diagnosed and repaired HVAC equipment” could describe almost any service call. Sofia describes a call for a system that stopped cooling. She names the wiring diagram and multimeter she uses to test electrical faults, then identifies the part she found and replaced on that call.
Experience
- Diagnose electrical faults with wiring diagrams and a multimeter. On a no-cooling call, identified a failed contactor in the outdoor unit, replaced it, and verified that the system cycled in cooling mode.
- Record the equipment model, test findings, and parts needed when a repair requires another visit. Tell the homeowner what work remains and send the parts details to the office. (note 1)
- Note 1:
The model and parts details help the office prepare for the return visit.
When you could confirm the fault but had to order a part, say what you found and passed along. If you were still testing, describe what you checked and what remained open. A useful service note is evidence even if you have no callback rate or first-visit completion figures. If you do have a measured result, check which calls it covers and what you contributed. The resume bullet guide shows other ways to describe work without a performance figure. Leave customer names, addresses, and private ticket details out of your resume.
Match the equipment and the kind of work
When a homeowner reports weak airflow from a heat pump, Sofia measures external static pressure and checks the reading against the unit's blower table. On a maintenance visit, she checks filters, drains, and thermostat response. The bullets show the difference between investigating a complaint and carrying out scheduled checks. If your experience is mainly seasonal maintenance, name the checks you did and the issues you reported. You can show familiarity with an air handler without claiming to have diagnosed a failed blower.
For a posting focused on residential cooling repairs, Sofia could move her leak detection and repair documentation higher. For a maintenance opening, the seasonal checks may deserve more space. Neither version establishes experience with gas furnaces, boilers, commercial chillers, or full system installations. Compare your actual equipment and duties with the opening before using its terms.
The service dispatcher example shows the office side of the same work. A dispatcher may arrange a return appointment after receiving a parts update. Sofia's bullet describes the findings she sends from the field.
Name the certification type you earned
Sofia completed a heating and air conditioning technology program in June 2021. She earned EPA Section 608 Type II certification through ESCO Institute in May 2022, during her helper job and before she became a service technician. The two entries record different qualifications.
Education
Certifications
ESCO Institute
Use the type and certifying organization on your record. Some employers accept Type II or Universal, while others specify Universal. The Universal credential covers equipment in Types I, II, and III. If a posting requires Universal, Sofia's Type II credential does not meet that requirement. Section 608 credentials do not expire, so use the earned date without adding a renewal date. List any certification from North American Technician Excellence (NATE) separately if you earned it. The certification guide explains how to distinguish credentials from training.
Keep helper work under its original title
Sofia's helper entry shows what she did on maintenance visits while a lead technician directed the work. She replaced filters, cleaned drains, and recorded equipment details. She dates her technician experience from January 2023, when she started that job. If you are applying for your first service job, describe what you performed in paid work, what you practiced in school, and what you only observed. Label classroom practice as training and keep the title and dates of any paid helper job. If a posting asks for a minimum period of field service, check whether it counts helper work.