EV charger service and maintenance for public, workplace and fleet charging networks

Keep every AC and DC charger on its own record, run servicing and RCD tests on schedule, and send a qualified technician to every fault.

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Updated 16 Oct 2026

FieldEx scheduling board on desktop with a technician's inspection checklist open on the mobile app, as used by EV charger service teams

FieldEx is a field service and asset management (FSM+CMMS) application for charge point operators and EV charger installation and maintenance contractors. It keeps every charging site and charger on record. FieldEx runs yearly servicing, filter checks and RCD tests on schedule. It turns driver and host fault reports into tracked repair jobs and keeps the timestamps, photos and parts used on every visit.

What FieldEx does for charge point operators and installers

A charging network is judged on one thing: whether the charger works when a driver pulls up. Behind that sits yearly servicing and regular safety tests. Drivers and site hosts send a stream of fault reports, and repair visits have to start and finish fast. FieldEx keeps the planned work, the faults and the evidence on each charger's own record. It sits alongside your other Field Service Management Software needs. Book a demo to see it on your own network.

FieldEx keeps the competent person's visits, the PPM, the faults and the certificates on each charger's own record. Book a demo to see it with your own sites.

Charging sites and chargers on record

A site record for every car park, forecourt, depot and workplace.
Each site holds its address, map pin, host contacts and service zone, plus the customer it belongs to.
An asset record for each charger, with its make, model, power rating and serial number.
Each charger record also holds firmware notes, photos, warranty details and attached manuals.
Parent and component levels, so a DC charger keeps its power cabinet, dispensers, connectors and cables as components, in Asset Management.
Status on every charger, such as in service, faulty or out of order, with a change history of who changed it and when.

Servicing and safety tests on schedule

Asset plans for each charger's yearly service and site plans for whole-site visits, each creating its jobs automatically.
Charger servicing intervals by day, week, month or year, on a fixed calendar or counted from the last completed visit.
Missed visits rescheduled after a set overdue period.
Recurring inspections, such as six-monthly RCD tests, with due, overdue and completed status on the dashboard.
One plan across every charger of a model, picking up new chargers that match its criteria, in Preventive Maintenance.

Faults from drivers, hosts and the network

Faults logged by your support team or by site hosts through a branded portal.
Drivers can also scan a QR code on the charger, which opens a fault form without logging in.
Each report arriving as a job in the backlog with its creation time, ready to assign, in Work Order Management.
A notification when a new fault repeats a recent job on the same charger, so recurring failures get a root-cause visit.

Response and repair targets

Service-level agreements with stages such as respond, attend and restore, each with at-risk and violation alerts.
Business hours that differ by day, or around the clock for rapid hubs.
Targets for all customers or for selected hosts and fleets, scoped to particular chargers and valid between set dates.
SLA timing, completion and violations on each job and in reports.
Custom job forms with number fields for insulation and RCD results.
Isolation and permit steps as ordered tasks that must be done before work starts.
Jobs and tasks can be downloaded and worked offline, with check-in, check-out and travel synced later.

Technicians at the charger

Automatic assignment matches each charger job on skills, zone and availability first, then picks the nearest and least busy technician.
A drag-and-drop scheduler for exceptions, in Scheduling and Dispatch.
Each job on the FieldEx Mobile App with the charger's history, the right checklist and watermarked photos. Custom job forms add number fields for test results.
Check-in and check-out times on each task, and ordered safety steps that must be completed before the next task can start.
Jobs and tasks can be downloaded and worked offline, with check-in, check-out and travel synced later.

Connectors, cables and boards

Charging cables, connectors, air filters, contactors and boards held in each warehouse and each technician's own stock.
Reorder and low-stock alerts per stock location, with transfers and barcode scanning, in Spare Parts Inventory.
Warranty periods on each part, and every part used recorded on the job and the charger.
Reports on faults, repair times, PPM done and maintenance cost per site, in Reporting and Analytics.
Reports can be exported or emailed on a timetable.

Your own testers, vans and workshop

EV charger testers, insulation and RCD testers and multimeters on record as company assets, each with its serial number and holder.
Calibration due dates for each tester as recurring certifications, with reminders and the certificate on the record.
Each service van runs on a maintenance plan by date or odometer reading and keeps its own service history.
Bench equipment used to repair boards and cables on its own maintenance plan.

Evidence for hosts, funders and auditors

A completion PDF for every job, sent automatically to the host or anyone else, with a record of when it was sent.
The PDF holds the equipment, the fault and its resolution, and the parts used. It also shows check-in and check-out times, timestamped photos and the customer's signature.
A customer portal where hosts and fleet customers see their chargers, upcoming asset maintenance, job status and downloadable reports.
Reports on jobs, faults, repair times, maintenance cost and asset reliability.
Reports can be exported or emailed on a schedule, in Reporting and Analytics.

FieldEx also runs this kind of work for Solar & Microgrid O&M and Battery Storage.

Do EV chargers need regular maintenance, and how often?

Yes: most chargers need a yearly service by a trained technician and an RCD test every 6 months. ABB's Terra DC Wallbox manual says the charger must be inspected and serviced every year by an ABB-trained or certified technician. The Institution of Engineering and Technology publishes BS 7671 FAQs on EV charging. They say residual current devices (RCDs) need testing every 6 months, using the test button where one is fitted.

What FieldEx does about it

The yearly service per charger: each charger's annual service runs on its own asset plan, with the manufacturer's checklist for that model.
Six-monthly RCD tests alongside: RCD tests run as a recurring inspection on the same charger, with their own checklist and result.
Manufacturer-trained technicians only: service jobs for each make require their matching skill, so they reach technicians trained on that charger.
Due dates across the network: the dashboard shows which chargers are overdue for service or testing, filtered by site, asset type or service zone.

What should an EV charger preventive maintenance checklist include?

An EV charger checklist covers air filters, connectors and cables, the RCD and the enclosure, following the manufacturer's manual. ABB's Terra DC Wallbox manual asks for air filters to be inspected every 12 months and replaced if required. Dusty sites and busy chargers need it more often. Connectors and cables are checked for cracks or ruptures, and to make sure no internal wires are visible. The IET adds that any RCD on an EV charging installation is tested in line with BS 7671 Regulation 643.8.

What FieldEx does about it

A checklist per charger model: AC wallboxes and DC rapid chargers each carry their own checklist. Sections cover the enclosure, cooling and connectors, as well as cables and safety tests.
Technicians take photos on the job from the mobile app. Photos attach to the job.
Failures raise the repair: a failed answer on the checklist creates the corrective job and its tasks straight away, and can book a follow-up inspection.
Filters on the right cycle: filter replacement can follow the calendar or the charger's session count recorded as a meter reading, whichever comes first. Fixed calendar dates apply to time-based plans.

What uptime must public EV chargers meet?

Federally funded US chargers must exceed 97% average annual uptime per port, and UK rapid chargers must be available 99% of the time. The US rule is the Federal Highway Administration's National Electric Vehicle Infrastructure (NEVI) standard at 23 CFR 680.116. In the UK, the Office for Zero Emission Vehicles' guidance on the Public Charge Point Regulations 2023 sets the 99% figure for rapid charge points of 50 kW or more. It is measured as an average across the operator's rapid network over the year.

What FieldEx does about it

Restoration targets that match the rule: service-level agreements on fault jobs time the response and the repair, with alerts well before each target is breached.
The right technician first: jobs are matched on skills, zone and availability first, then nearest and least busy, so the clock isn't lost to travel.
Spares close to the network: van stock and regional stores show where each spare board, connector and cable is held. The first visit can then fix the fault.
Repair times you can report: SLA timing and job durations are reported per charger, site or period.

How is EV charger uptime calculated, and what downtime is excluded?

Uptime is the share of minutes in the past year that a port worked, after excluded downtime is taken out. Under 23 CFR 680.116, NEVI uptime is ((525,600 − (T_outage − T_excluded)) ÷ 525,600) × 100, calculated monthly for the previous 12 months. Exclusions include scheduled maintenance, vandalism, natural disasters and faults caused by the vehicle. In the UK, the OZEV guidance says planned regular maintenance can be exempt from the reliability measure only if it isn't related to a fault and is evidenced.

Inspection and testing schedules that meet the electricity regulations.
Maintenance schedules.
Replacement schedules for components approaching the end of their operating life.

Its maintenance procedures add a risk-based schedule and a record of the work actually done. In Peninsular Malaysia, ST's Guidelines on EVCS base regular inspection on the manufacturer's recommended manual.

What FieldEx does about it

Planned and fault work kept apart: scheduled servicing and fault repairs carry different job types. Reports then show which downtime was maintenance and which was a fault.
Evidence of each planned visit: every scheduled job holds its check-in and check-out times, the checklist answers and photos.
Status changes with times: when a charger is marked out of order and back in service, the change history records who changed it and when.
Downtime measures built in: FieldEx reports downtime for every charger, along with MTBF and MTTR.

How must charge point operators handle drivers reporting a broken charger?

Give drivers a way to report the fault at any hour, and get each report to a technician. The UK's Public Charge Point Regulations 2023 require a free telephone helpline, staffed 24 hours a day, with the number displayed on or near the charge point. OZEV's guidance adds that the helpline must give real-time help, and a voicemail facility doesn't meet the requirement. In the US, 23 CFR 680.106 requires mechanisms for customers to report outages, malfunctions and other issues.

What FieldEx does about it

A fault form on the charger: a QR code on each charger opens a report form without logging in. The driver adds the location, a description, contact details and photos or video.
Every call becomes a job: the helpline team logs each fault as a job on the right charger, time-stamped and ready to dispatch.
Hosts report through the portal: site hosts and fleet customers raise faults and follow the repair through the branded customer portal.
The right technician, fast: jobs are matched on skills, zone and availability first, then nearest and least busy. A supervisor is alerted if nobody matches.

What outage and maintenance data must charge point operators report?

Funded US operators report uptime and outages every quarter and maintenance cost every year, and UK operators file an annual reliability report. NEVI's data rule at 23 CFR 680.112 requires each port's uptime, outage and excluded minutes for each of the previous 3 months, and the duration of each outage. Each year, recipients also report the maintenance and repair cost per charging station. In the UK, OZEV's guidance asks for an annual report of each charge point's reliability over the calendar year.

What FieldEx does about it

Maintenance cost per station: parts with their prices and labor time on each job feed maintenance cost reports per charger and site.
Outage jobs with their times: each fault job records when it was created, attended and closed, ready to export for the quarterly return.
Scheduled exports: reports run daily, weekly or monthly and are emailed automatically as CSV, Excel or PDF. Quarterly and yearly figures can be exported on demand.

Who is qualified to install and maintain public EV chargers?

On federally funded US sites, the electricians must hold Electric Vehicle Infrastructure Training Program (EVITP) certification or meet an equivalent apprenticeship requirement. That rule is in 23 CFR 680.106, which covers electricians installing, operating or maintaining EV supply equipment (EVSE). Manufacturers add their own condition. ABB's manual requires the yearly service to be done by an ABB-trained or certified technician.

What FieldEx does about it

Skills that match the requirement: EVITP certification and manufacturer training are set up as skills, and each job type requires the matching skill.
Automatic assignment checks it: assignment only offers the job to technicians who hold the skill, then matches on zone and availability.
Proof of who did the work: each job and inspection records the technician by name.
Certificates that don't lapse: training certificates are tracked as records with their own renewal schedule, due dates and automatic reminders.

How often should RCDs on EV charge points be tested?

Test the RCD every 6 months with its test button, and test it again at the yearly service. The IET's BS 7671 FAQs say the client should be told about six-monthly RCD testing, and that best practice includes any RCD built into the charger. ABB's Terra DC Wallbox manual says the internal residual current monitor (RCM) should be tested regularly with its test button and checked at the yearly maintenance visit.

What FieldEx does about it

A six-monthly test per charger: each charger's RCD test runs as a recurring inspection every 6 months, with the result recorded.
Trip times as numbers: where the RCD is tested with an instrument, a custom job form records the trip time and current.
Failed tests take the charger out: a failed RCD answer raises the repair job and can change the charger's status to out of order.

How long must a publicly funded EV charger be maintained?

NEVI-funded chargers must be maintained for at least 5 years from the date they start operating. That period is set in 23 CFR 680.106. The same section's 24-hour availability rule doesn't prohibit isolated or temporary interruptions for maintenance or repairs.

What FieldEx does about it

A plan with an end date: the maintenance plan for a funded site can run from the commissioning date for the funded period. It can also continue with no end date.
Contracts with dates: the maintenance contract for each site has its start and end dates, linked to the chargers and plans it covers.
Five years of history on the charger: every service, test, repair and part stays on the charger's record for the life of the asset.

What records must be kept of driver helpline calls about chargers?

UK operators keep a record of every helpline call and report on the calls each quarter. The Public Charge Point Regulations 2023 set both duties, with the quarterly report going to the Secretary of State. In the US, NEVI's data rule at 23 CFR 680.112 requires the duration in minutes of each outage to be reported.

What FieldEx does about it

Each call logged as a job: the helpline team records the caller's issue, the charger and the time as a job. That happens even when the fault is solved over the phone.
Quarterly call reports: reports group calls by charger, site, fault category and outcome for the quarter.
The repair linked to the call: when a technician visits, the work is on the same job. The call, the visit and the restoration time sit together.

How often should EV charger test equipment be checked?

Inspect each tester and its leads before every use, and calibrate it at the manufacturer's interval. The US Occupational Safety and Health Administration's rule 29 CFR 1910.334(c) requires a visual check of test instruments and their leads, probes and connectors before each use. A damaged item is removed from service until it has been repaired and tested safe. The same rule says only qualified persons may test electric circuits, and instruments must be rated for the circuits they connect to.

What FieldEx does about it

Every tester on record: each EV charger tester, insulation tester and RCD tester has its own asset record, with serial number and holder.
Pre-use checks on the job: the tester inspection can be a required first task on every service job.
Calibration on its own cycle: each tester's calibration runs as a recurring certification, shown as due or overdue, with reminders and the certificate on file.
Damaged kit out of use: a failed check can set the tester's status to out of service and raise a repair job.

How often should EVCS test instruments be checked and calibrated?

Inspect each tester and its leads before every use, and calibrate it at a SAMM-accredited laboratory on the manufacturer's cycle. Malaysia's SAMM scheme, run by Standards Malaysia, accredits calibration laboratories. The pre-use check comes from international practice. The US rule 29 CFR 1910.334(c) requires a visual check of test instruments, leads and probes before use. Any damaged item is removed from service until it is repaired and tested safe.

What FieldEx does about it

Every tester on record: each insulation, earth loop and RCD tester has its own asset record, with serial number and holder.
Pre-use checks on the job: the tester inspection can be a required first task on every competent person visit.
Calibration on its own cycle: each tester's calibration runs as a recurring certification, with reminders and the lab certificate on file.
Damaged kit out of use: a failed check can set the tester's status to out of service and raise a repair job.

Customer story

Chubb is an integrated security provider with more than 300 professionals across 18 branches. It runs installation and field maintenance of alarm, surveillance and access control systems on FieldEx. Its story reports a 50% increase in daily completed tasks and a 20% boost in first-time fix rates. Its story says technicians upload mandatory photos in the app, and automated alerts help avoid SLA penalties. It's a different industry, but the same pattern: fast repairs on equipment spread across many customer sites.

Read the Chubb Customer Story

Questions charge point operators ask about FieldEx

What is the best software for EV charger service and maintenance?

Choose software that runs the servicing, fault response and evidence described above on each charger's own record. FieldEx does this in one system, with field service and maintenance management on the same records. Compare approaches in our guide to Field Service Management Software.

Can FieldEx connect to our charge point management system?

Yes. Through the FieldEx API, outside systems such as charge point management platforms can create jobs and exchange data with FieldEx. FieldEx can connect to any open system through REST APIs and has connectors for QuickBooks and Xero.

Can drivers report a faulty charger by scanning it?

Yes, as described in the driver reporting section. Each QR code is tied to its charger, so the job lands on the right asset.

Can we set different repair targets for rapid hubs and destination chargers?

Yes. Service-level agreements can be scoped to particular customers and chargers, each with its own stages, business hours and alerts.

Can FieldEx separate planned maintenance from fault downtime?

Yes, through separate job types, as in the uptime section above. Downtime, MTBF and MTTR then report per charger as standard.

Can site hosts see the work done on their chargers?

Yes. The branded customer portal shows their chargers with last-serviced dates, upcoming asset maintenance, job status and downloadable job reports.

Can we track spare connectors and boards in vans?

Yes. FieldEx tracks each warehouse and each technician's own stock, with transfers and barcode scanning on the phone.

Can technicians record RCD test results on the phone?

Yes. Custom job forms, set up during onboarding, add number fields for trip times and test values. Technicians enter the exact values on site, and each reading is recorded against the job.

Do technicians need a signal in underground car parks?

No. Jobs and tasks can be downloaded and worked offline, with check-in, check-out and travel synced later.

How quickly can our charging network be running on FieldEx?

There's no setup fee. Once we know your requirements and your data is ready, FieldEx can be implemented in as little as a week with standard features for small businesses. Larger setups and custom work take longer. Sites and chargers can be uploaded. FieldEx helps with setup, and training is included. See Setup and Training.

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See your chiller and AHU PPM cycle running in FieldEx

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See your chiller and AHU PPM cycle running in FieldEx

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