Description
Install, maintain, troubleshoot, and repair electric vehicle supply equipment (EVSE), including chargers, power electronics, wiring, and networked controls.
- • Measure voltage, current, power, insulation resistance, ground impedance, and signal duty cycle using multimeters, clamp meters, megohm testers, and pilot-signal testers.
- • Record diagnostics, repairs, parts used, firmware versions, and labor time in service logs or CMMS.
- • Disassemble and reassemble EVSE cabinets, pedestals, and modules to specifications using hand and power tools and electrical meters.
- • Maintain inventory of replacement parts, connectors, contactors, fuses, and consumables.
- • Repair or replace defective components such as contactors, relays, control boards, power modules, cooling fans, and cable retractors.
- • Replace damaged charge cables, J1772/CCS/CHAdeMO couplers, holsters, and strain reliefs; torque terminations to specification.
- • Inspect wiring, terminations, overcurrent protection, surge protection, GFCI circuits, and grounding per schematics and one-lines.
- • Read and interpret service manuals, wiring diagrams, and work orders to plan repairs and maintenance.
- • Inspect and test EVSE to locate damage, worn parts, and malfunctions, and determine required repairs.
- • Use EV simulators or load banks to test output, pilot/proximity signals, and fault responses.
- • Perform insulation resistance and ground-bond tests before energizing equipment.
- • Crimp, ferrule, and solder conductors or repair harnesses; apply heat-shrink and protective coatings.
- • Assemble pedestals, wall mounts, and enclosures; install conduit, junction boxes, and pull and terminate conductors.
- • Configure chargers via laptop or HMI, including network, OCPP, RFID/payment, and load-management settings.
- • Update firmware, calibrate meters, and verify communication with back-end networks.
- • Diagnose faults using onboard diagnostics, error codes, logs, and remote monitoring tools.
- • Perform preventive maintenance by cleaning filters, heat sinks, vents, and terminals; replace worn gaskets and fans.
- • Verify torque on lugs and busbars; check clearances, cable routing, and strain reliefs.
- • Test for overheating and abnormal conditions using infrared thermometers or thermal cameras.
- • Validate utility supply, phase rotation, breaker sizing, and voltage drop; coordinate de-energization and lockout/tagout.
- • Conduct site acceptance and commissioning tests; document results and obtain sign-offs.
- • Seal and weatherproof enclosures, fittings, and conduit entries to maintain NEMA/IP ratings.
- • Ensure compliance with NEC, manufacturer specifications, and local codes and permits.
- • Support root-cause analysis and RMA processes with vendors; package and ship failed modules.
- • Provide customer training on basic operation, indicators, and safe use of EVSE.
- • Use material lifts and proper rigging to position heavy enclosures safely and ergonomically.
- • Respond to service calls, troubleshoot remotely when possible, and escalate complex issues appropriately.
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This site includes information from O*NET by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), used under the CC BY 4.0 license. Career Clutch has modified some of this information for student readability. USDOL/ETA has not approved, endorsed, or tested these modifications. O*NET® is a trademark of USDOL/ETA.
Last reviewed: Jan 2026
