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Defective harness

Defective harness — Vendor rejects coins

Candy · MARS Series Vending Machines

What does Defective harness mean?

The vending machine rejects all coins due to a faulty wiring harness. This can disrupt communication between components like the coin mechanism and the controller.

Common Causes

  • Damaged wiring harness
  • Loose connections within the harness

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the coin mechanism harness for any signs of damage.

  2. 2

    Check all connections within the harness.

  3. 3

    Replace the harness if it is found to be defective.

Browse all codes in this manual (36)
Verified technical data. Last updated: April 2026

Related Faults

3 beeps then stop3 beeps then stop — Motor fault detectedA1 High CurrentA1 High Current — Motor detected high current usageA1 Low CurrentA1 Low Current — Motor failed due to low current or motor not found
Source: Candy MARS Series Vending Machines
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