slow response times and timeouts in the APIs

Incident Report for Vaillant Group API Developer Programme

Resolved

This incident has been resolved.

Posted Dec 01, 2025 - 08:57 CET

Monitoring

A fix has been implemented and we are monitoring the results. History API might still show delayed data until all delayed data has been processed.

Posted Nov 27, 2025 - 13:32 CET

Identified

There is currently an issue in one of our backend services resulting in slow response times or even timeouts in our APIs.
Root cause has already been identified and we will release a fix soon.

We are sorry for any inconvenience this causes you.

Posted Nov 27, 2025 - 12:15 CET

This incident affected: APIs (advanced diagnostics API v1, advanced settings API v1, history API v1, schedules API v2, settings API v1, settings API v2, states API v2) and Legacy Services (diagnostics API v2).