Daikin | VRV

Error Code U6

Troubleshooting guide for the Daikin VRV system fault U6.

Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.

System Diagnosis

Malfunction of transmission between indoor units

Potential Causes & Solutions

  • Faulty wiring.
  • External factor (Noise etc.).
  • Defective indoor unit PCB.

Diagnose with Confidence

Use the ACLogics AI assistant to walk through this error code step-by-step.

Get the App

Included in Diagnosis Workflow

1

Ask

Upload nameplate & symptoms

2

Diagnose

AI identifies error U6

3

Report

Generate professional PDF