Zone Config Err
Worcester Bosch Incorrect zone configuration or addressing

Multi‑zone smart system shows 'Zone Config Err' or similar; some zones do not follow schedules.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Duplicate zone addresses, Mis‑assigned thermostats to zones, Incomplete commissioning in installer menu, Firmware bug in zoning controller

How to Fix / Troubleshooting

Safety first: No mains work is required for configuration changes.

  • Review zone list: In the main controller or app, list all zones and verify each has a unique name and assigned thermostat.
  • Re‑assign thermostats: For any zone showing errors, re‑run the zone assignment or binding process so the controller knows which thermostat controls which actuators.
  • Check schedules: Ensure each zone has a valid schedule and that there are no overlapping or invalid time entries.
  • Controller reboot: Power cycle the main controller or gateway to clear any temporary configuration glitches.
  • If errors persist: A firmware update or, in rare cases, replacement of the zoning controller may be required.
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Repair Difficulty

Medium 3/5

Required Part

Smart Zoning Controller
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