eRELAX/vSmart/MiGo connected HVAC system data not updated

Incident Report for Vaillant Group API Developer Programme

Resolved

This incident has been resolved.

Posted Apr 01, 2026 - 11:09 CEST

Monitoring

Issue was due to a disruption in an Integration with our service partner. This has been fixed and data has been reprocessed. Services are fully operational again.

Posted Mar 25, 2026 - 16:31 CET

Investigating

Since 11:09 CEST there is an incident in processing of incoming data for eRELAX/vSmart/MiGo connected HVAC systems.
This results in outdated data in the APIs and impacts write operations to the systems.

Posted Mar 25, 2026 - 12:18 CET

This incident affected: APIs (advanced diagnostics API v1, history API v1, notification push, schedules API v2, settings API v1, states API v2).