The Vaillant 0020028537 is a genuine OEM VR20 temperature sensor designed for use with Vaillant VRC and VRT control systems. This sensor accurately measures the flow or system temperature and communicates the data to the boiler’s control module, allowing precise modulation, efficient heating performance, and enhanced comfort control.

A faulty VR20 sensor can lead to incorrect temperature readings, poor system modulation, fluctuating heating output, reduced efficiency, or error codes. Replacing it with this genuine Vaillant component restores accurate temperature monitoring and reliable operation.

Key Features:

• Genuine Vaillant VR20 temperature sensor

• Designed for VRC & VRT control systems

• Provides precise temperature measurement for efficient modulation

• Supports stable boiler operation and improved energy efficiency

• Manufactured to Vaillant’s strict OEM standards

• Helps resolve temperature-related faults & inconsistent heating

• Durable construction with long service life

• Direct-fit replacement for professional installation

Compatibility

The Vaillant 0020028537 VR20 Sensor is compatible with:

• Vaillant VRC control units

• Vaillant VRT thermostat systems

• Heating appliances and controllers listing 0020028537 in their official documentation

This includes a wide range of Vaillant boilers and system setups using VR20-compatible controls.

Installers should verify exact compatibility using the system’s technical manual or wiring guide.