Monitoring - From 05:30 to 08:30 CEST, our API services experienced intermittent connection timeouts and connection resets due to an issue affecting a central infrastructure component. The issue has been mitigated, and service stability has been restored. We are actively monitoring the environment to ensure continued normal operation.
Oct 09, 2026 - 13:39 CEST
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
developer portal Operational
end-customer preferences center Operational
end-customer IDM Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Oct 12, 2026

No incidents reported today.

Oct 11, 2026

No incidents reported.

Oct 10, 2026

No incidents reported.

Oct 9, 2026

Resolved - This incident has been resolved.
Oct 9, 15:22 CEST
Monitoring - A fix has been implemented and we are monitoring the results.
Oct 1, 16:08 CEST
Identified - Execution of control commands put via the APIs is currently delayed by several hours.
We have already identified the issue and are working on a fix.

Oct 1, 11:00 CEST

Oct 8, 2026

No incidents reported.

Oct 7, 2026

No incidents reported.

Oct 6, 2026

No incidents reported.

Oct 5, 2026

No incidents reported.

Oct 4, 2026

No incidents reported.

Oct 3, 2026

No incidents reported.

Oct 2, 2026

No incidents reported.

Oct 1, 2026

Resolved - This incident has been resolved.
Oct 1, 10:56 CEST
Monitoring - Processing delays have been resolved. We will continue to monitor our services closely.
Sep 30, 12:25 CEST
Identified - Due to an issue during the maintenance of the core platform component migration we have build up some lags in processing of incoming data for connected systems. Current delay of data is 2-4 hours. We are sorry for the inconvenience and working already on a fix.
Sep 30, 09:30 CEST

Sep 30, 2026

Completed - The scheduled maintenance has been completed.
Sep 30, 00:00 CEST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 29, 20:00 CEST
Scheduled - Migration of a core platform component of the Vaillant Group IoT platform will require temporary downtime and might cause intermittent disruptions during time of this maintenance window.
Sep 11, 15:36 CEST

Sep 29, 2026

Sep 28, 2026

No incidents reported.