CodeRegistry
Brands
  1. Home
  2. Viessmann
  3. Vitodens 200 Boilers
  4. Boiler enabling
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

Boiler enabling

"Boiler enabling" on display - Boiler is starting up or has a coding issue

Viessmann · Vitodens 200 Boilers

What does Boiler enabling mean?

The display shows "Boiler enabling," which indicates the boiler is initiating operation, but it can also signify that certain critical coding addresses might have been altered from their factory default settings.

Common Causes

  • Boiler is in its normal enabling or startup sequence
  • "Do not change" coding addresses have been incorrectly modified

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Allow the boiler some time to complete its enabling sequence.

  2. 2

    Verify all coding addresses, especially those marked "Do not change," ensuring they are in their factory default settings.

  3. 3

    If changes were made, power cycle the boiler (off/on) for them to take effect.

Browse all codes in this manual (21)
Verified technical data. Last updated: April 2026

Related Faults

06 / 07Fault 06 or 07 - Insufficient air supply or vent blockage14Fault 14 - Ignition failure or gas supply issue14 (multiple boilers)Fault 14 (Multiple Boilers) - One boiler locks out while others run
Source: Viessmann Vitodens 200 Boilers
Open Manual (Page 8)Search more codes in this manual