# Generator Code Vault — Diesel fault codes & fixes

> Diesel fault codes & fixes (iPhone/iPad app by gEncompass LLC.)

- Source: https://appshunter.io/ios/app/generator-code-vault/id6802897049 (this page in markdown: same URL + `.md`)
- Developer: [gEncompass LLC](https://appshunter.io/developer/6802897051)
- Category: Utilities
- Price: Free
- Age rating: 17+
- Requires: iOS 15.0 · 13 MB
- Languages: American English
- Released: 2026-08-31
- Data updated: 2026-09-13
- User reviews in markdown: https://appshunter.io/ios/app/generator-code-vault/id6802897049/reviews.md

## What is Generator Code Vault?

The fault-code answer in seconds - even with no signal in the generator room.

Generator Code Vault puts 3,743 diesel generator fault codes from 38 brands in your pocket. Every code comes with the plain-language cause and the fix, so you can go from alarm to answer right at the panel.

No account. No sign-in. Download it and get to work - your subscription is handled entirely by the App Store.

WHAT YOU GET
- 3,743 fault codes across 38 brands, searchable by code, brand or symptom
- Plain-language causes and step-by-step fixes for every code
- 55 guided sensor test procedures - test it before you replace it
- 14 controller operating guides: read alarms, clear the fault log, reach service menus
- J1939 SPN/FMI quick-decoder
- Power, fuel and A/C sizing calculators built for gensets
- Separate A/C and heat pump fault-code library
- Works fully offline - no signal needed on site
- Share any code, test or calculation as a clean card by text or email
- Community forum - ask other techs and the gEncompass team, get an email when someone answers

BUILT FOR REAL JOB SITES
No signal in the generator room? No problem. Everything works offline. Search by the number on the controller, by brand, or just describe the symptom.

PRO PLAN
The Pro plan adds the AI assistant and the Job Builder: drag equipment onto a canvas, pull feeders, and it sizes breakers, wire and cable - then produces single-line diagrams and material order sheets so quotes go out the same day. Job Builder runs on your Mac or PC through a secure emailed link - no download, no password.

PRICING
7-day free trial - full app, nothing to set up. Then Basic $4.99/month (all codes, sensor tests, guides and calculators) or Pro $7.99/month (everything plus AI assistant and Job Builder). Subscriptions auto-renew monthly and can be cancelled anytime in your App Store settings.

Generator Code Vault is a product of gEncompass LLC. Questions? support@gencompass.com

Terms of Use: https://codevault.gencompass.com/terms.html
Privacy Policy: https://codevault.gencompass.com/privacy-policy.html


## Version history (last 2 releases)

### 1.1 — 2026-09-06

Job Builder now covers more electric heat sizes on A/C and heat units. 47, 60, 72, 96, 128 and 144 kW have been added alongside the existing options, so larger units size correctly for FLA and breaker.

The app icon has also been corrected.

### 1.0 — 2026-08-31

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-13.*