Diagnostic Services

This API package is designed to reduce the number of on-site visits and increase service efficiency by monitoring Vaillant heating systems remotely.

  • Supported heating systems: boilers and heat pumps

  • Supported gateways: eRELAX/vSMART/MiGo, sensoNET/MiLink, myVAILLANT connect/MiGo Link

This product contains APIs to fetch information about

  • Topology of the system

  • Temperatures and operation modes

  • Time windows

  • Consumption data

  • Diagnostic data of heating appliance

  • Notifications and error push feature

Usage instructions

  • Register the system to your API client (needs to be unlocked by Vaillant) with the System Registration Service

  • Get an overview about the heating system components with the Systems API

  • Read the current HVAC state with the States API

  • Read diagnostic data with Diagnostic API

  • Adapt the operation mode for CH/DHW/Cooling with Settings API

  • Adapt the target temperature for CH/DHW/Cooling with Settings API

  • Adapt the time windows for CH/DHW/Cooling with Schedules API

  • Read consumption data with the Consumption API

  • Retrieve push notifications

Are you interested in Vaillant´s API services?

Please apply here