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Incorrect 017 coding

Incorrect Coding 017 - Burner firing without circulation pump

Viessmann · Vitodens 200 Boilers

What does Incorrect 017 coding mean?

Modifying coding address 017 from its factory default (017:001) for models 6-24/8-32 will cause the burner to fire without the circulation pump operating, potentially leading to fault 02. This coding has no effect on models WB2-44/60.

Common Causes

  • Incorrect modification of coding address 017 from its specified value of 017:001

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    For models 6-24/8-32, ensure coding address 017 is set to its factory default of 017:001.

  2. 2

    After making any changes, power cycle the boiler (power ON/OFF) for the new settings to take effect.

  3. 3

    If fault 02 appears, address coding 017 first for applicable models.

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
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