Vaillant Group API Developer Programme Status

All Systems Operational

APIs Operational

authorization server Operational

advanced diagnostics API v1 Operational

advanced settings API v1 Operational

consumption API v1 Operational

energy management API v1 Operational

history API v1 Operational

notification push Operational

notifications API v1 Operational

schedules API v2 Operational

settings API v1 Operational

settings API v2 Operational

states API v2 Operational

systems API v2 Operational

system registration API v1 Operational

trouble code information API v1 Operational

end-customer consent portal Operational

developer portal Operational

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Past Incidents

Apr 12, 2026

No incidents reported today.

Apr 11, 2026

No incidents reported.

Apr 10, 2026

No incidents reported.

Apr 9, 2026

eRELAX/vSmart/MiGo backend service maintenance

Completed - The scheduled maintenance has been completed.
Apr 9, 12:00 CEST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 9, 10:30 CEST

Scheduled - A network migration of our service provider could cause temporary disruption in the marked as affected APIs for eRELAX/vSmart/MiGo connected appliances
Mar 26, 08:43 CET

Apr 8, 2026

No incidents reported.

Apr 7, 2026

eRELAX/vSmart/MiGo backend service maintenance

Completed - The scheduled maintenance has been completed.
Apr 7, 12:00 CEST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 7, 10:30 CEST

Scheduled - A network migration of our service provider could cause temporary disruption in the marked as affected APIs for eRELAX/vSmart/MiGo connected appliances
Mar 26, 08:42 CET

Apr 6, 2026

No incidents reported.

Apr 5, 2026

No incidents reported.

Apr 4, 2026

No incidents reported.

Apr 3, 2026

No incidents reported.

Apr 2, 2026

No incidents reported.

Apr 1, 2026

eRELAX/vSmart/MiGo connected HVAC system data not updated

Resolved - This incident has been resolved.
Apr 1, 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.
Mar 25, 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This results in outdated data in the APIs and impacts write operations to the systems.
Mar 25, 12:18 CET

Delay in availability of data for VR9xx connected systems

Resolved - This incident has been resolved.
Apr 1, 11:08 CEST

Monitoring - A fix has been implemented and we are monitoring the results.
Mar 31, 08:55 CEST

Identified - The issue has been identified and a fix is being implemented.
Mar 30, 16:51 CEST

Mar 31, 2026

eRELAX/vSmart/MiGo backend service maintenance

Completed - The scheduled maintenance has been completed.
Mar 31, 12:00 CEST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 31, 10:30 CEST

Scheduled - A network migration of our service provider could cause temporary disruption in the marked as affected APIs for eRELAX/vSmart/MiGo connected appliances
Mar 26, 08:41 CET

Mar 30, 2026

eRELAX/vSmart/MiGo backend service maintenance

Completed - The scheduled maintenance has been completed.
Mar 30, 12:00 CEST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 30, 10:30 CEST

Scheduled - We will be undergoing scheduled maintenance during this time.
Mar 26, 08:40 CET

Mar 29, 2026

No incidents reported.