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283

Com.flt PCA Ac- cessory 283 — Accessory is blocked: Temporary communication fault

Nibe · Air Conditioning

What does 283 mean?

A temporary communication fault has occurred with the accessory board. Check communication cables, connections, and electrical supply.

Common Causes

  • Defective communication cables
  • Incorrectly set dip switch
  • The accessory is activated in the display, but is not connected with a communication cable
  • Incorrectly connected communication cable
  • No electrical supply to the accessory board

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check communication cables and connections to the accessory.

  2. 2

    Verify dip switch settings.

  3. 3

    Ensure the accessory is properly connected via cable.

  4. 4

    Confirm the accessory board has electrical supply.

  5. 5

    Restart the system.

Browse all codes in this manual (95)
Verified technical data. Last updated: April 2026

Related Faults

107Sensor flt: BT7 HW sens top 107 — Sensor fault: Hot water sensor151Sen flt: CL11- BT51 pool temp sensor 151 — Sensor fault: Pool temperature sensor152Sen flt: CL12- BT51 pool temper- ature sensor 152 — Sensor fault: Pool temperature sensor
Source: Nibe Air Conditioning
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