
Solar Inverter Maintenance Course
Master every aspect of solar inverter maintenance, from reading error codes to replacing power semiconductors. This course gives working technicians the hands-on knowledge to diagnose faults, perform preventive maintenance, and commission PV systems with confidence. If you work with solar, this is the technical upgrade your career needs.
What you will learn:
You will build a complete skill set covering inverter types, internal components, and diagnostic tools used in real PV systems. You will learn how to use multimeters, oscilloscopes, thermal cameras, and power quality analyzers to accurately pinpoint faults accurately. The course covers preventive maintenance schedules, cooling system servicing, firmware updates, and safe component replacement procedures. You will also learn how to commission inverters, configure remote monitoring, and interpret performance data. Battery storage integration, grid compliance requirements, and professional documentation practices are included. By the end, you will be equipped to maintain and troubleshoot inverters across residential, commercial, and utility-scale solar installations.
How you study in a practical way Solar Inverter Maintenance Course
How you practice Solar Inverter Maintenance Course
For companies who want to train their team
With Dedika for businesses, the course includes exercises and examples tailored to your own business and the way your company needs.
Course content
8 Chapters • 39 LessonsDuration between 4 and 360 hours (you decide)
Chapter 1HideHide detailsSee detailsFundamentals of Solar Energy Systems
Fundamentals of Solar Energy Systems
Lesson 1 • Solar PV System Architecture
Describes how panels, inverters, batteries, and grid connections integrate. Contextualizes the inverter's role within the full system.
Lesson 2 • Safety Standards and Electrical Hazards
Identifies electrical hazards unique to PV systems including arc flash and DC shock risk. Establishes safe work practices required before any hands-on maintenance.
Lesson 3 • Photovoltaic Energy Conversion Basics
Covers the photoelectric effect and how solar cells generate DC electricity. Provides the physics foundation required for all subsequent inverter topics.
Lesson 4 • Electrical Fundamentals for PV Technicians
Reviews DC and AC circuit theory, Ohm's law, and power calculations essential for inverter diagnostics. Bridges general electrical knowledge to PV-specific applications.
Chapter 2HideHide detailsSee detailsSolar Inverter Types and Technologies
Solar Inverter Types and Technologies
Lesson 1 • Central Inverter Systems
Covers large-scale central inverters used in utility projects, including combiner box integration. Highlights differences in maintenance complexity versus string units.
Lesson 2 • Hybrid and Battery-Integrated Inverters
Examines inverters with integrated battery management for storage-coupled systems. Covers charge/discharge control and grid interaction modes.
Lesson 3 • Microinverters and Power Optimizers
Details module-level power electronics including microinverters and DC optimizers. Compares performance monitoring granularity and maintenance access challenges.
Lesson 4 • Inverter Efficiency and Performance Metrics
Defines CEC efficiency, European efficiency, and weighted efficiency ratings. Enables technicians to evaluate inverter performance against manufacturer specifications.
Lesson 5 • String Inverter Design and Operation
Explains how string inverters convert DC from series-connected panels to AC. Covers MPPT algorithms and typical residential and commercial use cases.
Chapter 3HideHide detailsSee detailsInverter Components and Internal Systems
Inverter Components and Internal Systems
Lesson 1 • Cooling and Thermal Management Systems
Examines passive heatsinks, active fans, and liquid cooling used to manage inverter temperature. Links thermal management effectiveness to component lifespan.
Lesson 2 • Power Semiconductor Devices
Covers IGBTs, MOSFETs, and diodes used in inverter switching stages. Explains switching frequency, gate drive signals, and thermal stress on semiconductors.
Lesson 3 • DC-AC Conversion Circuitry
Explains H-bridge and multilevel inverter topologies that produce AC output. Connects switching patterns to output waveform quality and harmonic content.
Lesson 4 • Capacitors, Inductors, and Filters
Details electrolytic and film capacitors, DC-link capacitors, and AC output inductors. Explains aging mechanisms and their effect on inverter reliability.
Lesson 5 • Control Boards and Firmware
Describes microcontroller-based control boards that manage MPPT, protection, and grid sync. Covers firmware roles and the impact of software faults on inverter behavior.
Chapter 4HideHide detailsSee detailsDiagnostic Tools and Measurement Techniques
Diagnostic Tools and Measurement Techniques
Lesson 1 • Power Quality Analyzers
Covers use of power quality analyzers to measure THD, power factor, and voltage sags. Links power quality data to grid compliance and inverter health assessment.
Lesson 2 • Insulation Resistance and Ground Testing
Explains megohmmeter testing to detect insulation degradation in PV wiring and inverters. Connects test results to safety compliance and fault prevention.
Lesson 3 • Thermal Imaging for Inverter Inspection
Introduces infrared thermography to locate hot spots in inverters and wiring. Provides a non-invasive method to detect failing components before failure occurs.
Lesson 4 • Multimeter and Clamp Meter Usage
Covers safe and accurate use of digital multimeters and clamp meters on PV systems. Establishes measurement discipline as the foundation for all fault-finding work.
Lesson 5 • Oscilloscope and Waveform Analysis
Teaches oscilloscope setup and waveform capture for inverter output signals. Enables identification of switching anomalies, harmonics, and control signal faults.
Chapter 5HideHide detailsSee detailsPreventive Maintenance Procedures
Preventive Maintenance Procedures
Lesson 1 • Maintenance Planning and Scheduling
Covers how to build maintenance schedules based on manufacturer intervals and site conditions. Connects planning discipline to reduced unplanned downtime.
Lesson 2 • Visual Inspection and Cleaning Protocols
Details systematic visual checks for corrosion, loose connections, and physical damage. Establishes cleaning procedures for enclosures, vents, and heat exchangers.
Lesson 3 • Cooling System Maintenance
Details fan replacement, filter cleaning, and liquid coolant checks to sustain thermal performance. Connects cooling maintenance to semiconductor longevity.
Lesson 4 • Firmware and Software Updates
Explains the process of safely updating inverter firmware and monitoring software. Covers version verification, rollback procedures, and update documentation.
Lesson 5 • Electrical Connection Torque and Testing
Covers torque verification of DC and AC terminals to prevent resistance heating. Links proper torque values to connection reliability and fire risk reduction.
Chapter 6HideHide detailsSee detailsFault Diagnosis and Troubleshooting
Fault Diagnosis and Troubleshooting
Lesson 1 • Internal Component Fault Diagnosis
Guides technicians through diagnosing failed capacitors, IGBTs, fans, and control boards. Applies component knowledge from Chapter 3 to real fault scenarios.
Lesson 2 • Systematic Fault-Finding Methodology
Introduces a structured diagnostic process using elimination, substitution, and root cause analysis. Builds consistent troubleshooting habits applicable across inverter brands.
Lesson 3 • Reading and Interpreting Error Codes
Explains how to access inverter fault logs and decode manufacturer error codes. Provides a structured starting point for all diagnostic workflows.
Lesson 4 • DC-Side Fault Diagnosis
Covers diagnosis of string open circuits, ground faults, and reverse polarity on the DC input. Links measurement results to specific panel or wiring failures.
Lesson 5 • AC-Side and Grid Fault Diagnosis
Addresses over-voltage, under-voltage, frequency deviation, and anti-islanding trips. Connects grid condition monitoring to inverter protection response.
Chapter 7HideHide detailsSee detailsComponent Replacement and Repair Procedures
Component Replacement and Repair Procedures
Lesson 1 • Safe Isolation and De-energization
Details the full isolation sequence for DC and AC sides before any internal work. Ensures technician safety and prevents equipment damage during repairs.
Lesson 2 • Capacitor and Filter Replacement
Covers safe removal and installation of DC-link and filter capacitors with correct polarity. Links proper replacement technique to restored inverter stability.
Lesson 3 • Fan and Cooling System Replacement
Details fan unit replacement and liquid cooling component servicing procedures. Connects restored cooling performance to inverter thermal protection reset.
Lesson 4 • Control Board and Display Replacement
Covers safe removal and configuration of replacement control boards and HMI displays. Includes firmware loading and parameter restoration after board swap.
Lesson 5 • Power Semiconductor Replacement
Guides replacement of IGBTs and MOSFETs including thermal interface application. Covers gate driver verification after installation to confirm correct operation.
Chapter 8HideHide detailsSee detailsMonitoring, Commissioning, and Performance Optimization
Monitoring, Commissioning, and Performance Optimization
Lesson 1 • MPPT and Parameter Optimization
Explains how to tune MPPT settings, reactive power control, and voltage regulation parameters. Links parameter optimization to improved energy harvest and grid compliance.
Lesson 2 • Inverter Commissioning Procedures
Details the step-by-step startup sequence including parameter configuration and grid connection. Establishes commissioning as the final validation of installation quality.
Lesson 3 • Performance Data Analysis
Teaches interpretation of yield data, specific yield, and performance ratio trends. Connects data analysis to early detection of degradation and underperformance.
Lesson 4 • End-of-Life Assessment and Replacement Planning
Covers methods to assess inverter aging, predict remaining useful life, and plan replacements. Enables proactive asset management to avoid unplanned system outages.
Lesson 5 • Remote Monitoring System Setup
Covers communication protocol configuration for data loggers, cloud platforms, and SCADA. Enables continuous performance visibility without on-site presence.
Your valid completion certificate
This course is for you:
Solar installer: ready to move beyond panels into inverter-level technical work.
Electrician: expanding into the renewable energy sector with structured PV knowledge.
O&M technician: needing deeper inverter expertise to handle complex field faults.
Facilities manager: responsible for solar assets and wants to evaluate service quality.
Career changer: entering the solar industry from a general electrical or trade background.
Engineering student: building practical maintenance skills to complement academic theory.
What our students say
Your classes are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of my interest without needing to change platforms... I thank you for everything you do, I've already recommended you to other people...

I like how the lessons are straight to the point and how I can switch chapters and skip content I don't need.

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