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Repairs & diagnostics

EV Charger Repair & Troubleshooting in San Mateo

Diagnosis and repair for home and business chargers across San Mateo and nearby cities along US-101 and I-280.

Electrician testing an EV charger connection with a multimeter

When the Charger Stops Pulling Its Weight

A charger that trips its breaker, charges slower than it should, throws fault codes or just goes dark is more than an annoyance. Often it points to a wiring problem. Many of the repair calls we take in San Mateo trace back to an earlier install: an undersized breaker, a loose terminal, a cheap receptacle or a missing current setting. San Mateo EV Charger Installation diagnoses the whole circuit, from the panel to the plug, and fixes the cause, not just the symptom. If the unit itself has failed, we replace it and handle the warranty claim where possible.

What We Check and Fix

We test every part of the charging circuit before recommending a repair.

  • Breaker trips

    We find out why the breaker is opening, from an undersized breaker to a ground fault, and correct it.

  • Slow charging

    We check the charger's current setting, the car's charge limits and the circuit voltage under load.

  • Fault codes and error lights

    We read the charger's error history and test against the manufacturer's troubleshooting steps.

  • Hot or discolored outlets

    A warm 14-50 receptacle is a warning sign. We replace it with an industrial-grade unit and check the connections behind it.

  • Loose or burnt terminals

    We inspect and re-torque connections at the breaker and the charger, replacing damaged parts.

  • Wi-Fi and app problems

    We reconnect smart chargers to your network and fix pairing problems that block scheduling.

  • Failed unit replacement

    If the charger is dead, we swap it for a new unit and help with the manufacturer warranty claim.

  • Code corrections on prior installs

    We bring DIY or handyman installs up to code and permit the corrections.

  • Written findings

    You get a short report of what we found, what we fixed and photos of the work.

How a Repair Visit Works

Describe the symptom

Call (650) 727-5460 and tell us what the charger is doing. Fault codes, photos of the panel and the charger model help. We can often narrow down the cause on the phone.

Diagnosis on site

A licensed electrician tests the circuit, the connections and the charger. Most diagnoses take under an hour. You get a clear explanation and a flat price before any repair.

Repair and test

We fix the problem, run a full charging session and confirm everything is stable. Code corrections get a permit and inspection.

Why Call Us for Charger Repairs

We fix causes, not symptoms

Resetting a breaker is not a repair. We find the reason it tripped and correct it.

Brand experience across the board

We work on Tesla, ChargePoint, Wallbox, Enphase, Emporia, Grizzl-E and more, so we know their common failure points.

Licensed and honest

A C-10 licensed electrician on every call, and a straight answer on whether to repair or replace.

Every job includes

  • Licensed C-10 & Insured
  • Flat-Rate Pricing
  • Diagnosis usually under an hour
  • EVITP-Certified Installers

Get Your Charger Working Again

Do not keep resetting the breaker. Call and get a licensed diagnosis and a flat repair price.

(650) 727-5460

C-10 licensed · EVITP-certified · Permit and inspection handled