Vaillant VRC 700 410s 430 430f Outdoor Temperature Sensor 000693

Product Overview

The Vaillant Outdoor Temperature Sensor (Part Number: 000693) is an external temperature-sensing component associated with selected Vaillant weather-compensated heating control systems.

The sensor measures outdoor air temperature and provides temperature information to the connected heating controller.

Weather-compensated controls use outdoor temperature readings to adjust heating operation according to changing weather conditions, helping the heating system respond appropriately to the building's heating requirements.

ℹ️ Product Condition Options:

This part may be available in New or Refurbished condition. Please select your desired option from the dropdown menu above. Refurbished sensors should be professionally inspected and electrically tested to confirm correct temperature-sensing performance before installation.

Technical Insight & Common Failure Symptoms

The outdoor temperature sensor forms part of a weather-compensated heating control system. It detects changes in external temperature, allowing the connected controller to adjust heating operation using its programmed heating curve and control settings.

Accurate outdoor temperature information is important for the correct operation of weather-dependent heating controls.

Possible symptoms that may indicate an outdoor temperature sensor or associated control problem include:

• Outdoor temperature readings appearing incorrect or inconsistent.

• Heating operation not responding appropriately to changes in outdoor temperature.

• Missing outdoor temperature information on the heating controller.

• Intermittent temperature readings.

• Weather-compensated heating control not operating as expected.

• Sensor-related communication or electrical faults.

• Visible damage to the sensor housing or electrical connections.

These symptoms do not necessarily confirm a faulty outdoor temperature sensor, as similar problems may result from wiring, controller settings, electrical connections or other heating control components. Correct professional diagnosis should be carried out before replacement.

Compatibility

This part (Reference: 000693) is being listed for selected Vaillant VRC weather-compensated heating control systems.

Please verify the exact controller model, sensor reference, electrical specifications and connection arrangement against Vaillant's technical documentation before ordering to ensure correct fitment.

Safety Advice

Outdoor temperature sensors and associated heating control components should only be inspected, removed or installed by a suitably qualified and competent heating engineer or electrical professional where required.

Always isolate the relevant electrical supply before carrying out any work and follow the manufacturer's installation instructions. The sensor must be correctly positioned and connected according to the specified installation requirements. Appropriate electrical, temperature-reading and heating control checks should be completed before the system is returned to service.