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Display is not lit

Display is not lit — No power or system error

Nibe · SHB 20

What does Display is not lit mean?

If the display is completely blank, there may be a power issue or a significant system fault preventing it from turning on.

Common Causes

  • Power supply interruption
  • Main control board fault
  • Wiring issue

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the main power switch for the unit.

  2. 2

    Verify that the main fuses and circuit breakers for the accommodation are on.

  3. 3

    Check the control module's miniature circuit breaker.

  4. 4

    If power is confirmed, contact your installer.

Browse all codes in this manual (15)
Verified technical data. Last updated: April 2026

Related Faults

Additional heat blocked symbolAdditional heat blocked symbol — Auxiliary heat prevented from runningAlarm bell appearsAlarm bell appears on display — System malfunction alertCompressor blocked symbolCompressor blocked symbol — Compressor prevented from running
Source: Nibe SHB 20
Open Manual (Page 90)Search more codes in this manual