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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

CrF

PRECHARGE FAULT

Schindler · Altivar 312 Drive

What does CrF mean?

This fault indicates a problem with the drive's internal capacitor precharge circuit, potentially due to a faulty precharge relay control or a damaged precharge resistor. This prevents the drive from powering up correctly and charging its DC bus.

Common Causes

  • Precharge relay control or damaged precharge resistor

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Replace the drive.

Browse all codes in this manual (32)
Verified technical data. Last updated: April 2026

Related Faults

A-17Alarm buttonCFFINCORRECT CONFIG.CFIINVALID CONFIG
Source: Schindler Altivar 312 Drive
Open Manual (Page 106)Search more codes in this manual