Home > Starfield > How To Fix Starfield Ship Reactor Class Error (Exceed Reactor Class)

How To Fix Starfield Ship Reactor Class Error (Exceed Reactor Class)

Published Date :

With a highly complex ship builder, Starfield gives players a great deal of freedom to customize their ships. However, this also means that errors may arise, and the Reactor Class is often the root of these issues. This guide will explain how to fix the Starfield ship reactor class error.

Starfield Ship Reactor Class Error Explained

Starfield Ship Reactor Class Error

In Starfield, your ship’s modules each have a class – A, B, or C. However, your reactor limits the maximum class you can equip. If you try to use a module that exceeds your reactor’s class, you’ll get an error— “Ship contains modules that exceed reactor class.”

This happens because your reactor provides power to your ship’s systems. Higher-class modules require more power than a lower-class reactor can’t offer. You need to make sure all modules match or are lower than your reactor’s class.

Fixing the Ship Reactor Class Error

Always check the module and reactor classes to ensure everything matches up. Pay attention to the in-game tooltips for clear classifications. There are two main ways to resolve this error:

Downgrade Modules

When you first start the game, you can only equip Class A modules because your default Piloting skill only allows a Class A reactor. If you have modules that are too powerful for your reactor, you’ll need to replace them with ones of an equal or lower class. Check the class of your engines, weapons, shields, etc., and swap any too advanced.

Upgrade Your Reactor

Alternatively, you can upgrade your reactor to a higher class, allowing you to keep more powerful modules. However, upgrading your reactor requires having a high enough Piloting skill rank. As you level up Piloting, you’ll unlock the ability to equip higher-class reactors. Rank 3 Piloting allows a Class B reactor, and Rank 4 allows a Class C reactor.

And that’s everything you need to know on how to fix Starfield ship reactor class error. If you found this guide helpful, check out other such articles like how to build and customize a spaceship, or find here the best ship tier list. Moreover, you can take a look at our Starfield dedication section.

  • Steal an Egg Codes (September 2026)

    Steal an Egg Codes (September 2026)

    Published Date :

    Steal An Egg is a Roblox game where you steal eggs from creatures, hatch them, and build a collection of pets. As you progress, you can also improve your base and race through different areas as you work toward rarer pets. Speaking of progression, many players are looking for Steal An Egg codes that can… Read More

  • Silk Road Trading Simulator Codes (September 2026)

    Silk Road Trading Simulator Codes (September 2026)

    Published Date :

    Silk Road Trading Simulator is a Roblox game where you take on the role of a merchant and travel between historic locations while trading goods. You can build your wealth, expand your trading operation, and customize your character along the way. Codes can give you free items, including cosmetics for your merchant. Here’s the complete… Read More

  • How to Play NoPixel V

    How to Play NoPixel V

    Published Date :

    NoPixel V is the newest version of the famous GTA 5 roleplay experience, and this time Rockstar Games is officially supporting the project. It comes with a complete rebuild of the server, new locations, updated visuals, and more tools for creating roleplay stories. However, the September launch is not an open release. Here’s what you… Read More

  • GTA 6 Sprint Control Change: Rockstar Ditches Button Mashing?

    GTA 6 Sprint Control Change: Rockstar Ditches Button Mashing?

    Published Date :

    Rockstar is making a small but important change to how players sprint in GTA 6. The new instalment appears to be moving away from the button-mashing controls used in earlier GTA titles and switching sprinting to the left stick. This means running around Vice City should require fewer repeated button presses when playing as Jason… Read More