Grant High Limit Thermostat 11 Vbs147 All Vortex Models

Vortex Manual reset SBSC This Limit Stat is compatible

Grant High Limit Thermostat 11 – VBS147

Genuine Overheat Cut-Out Thermostat for All Grant Vortex Oil Boilers

The Grant VBS147 High Limit Thermostat 11 is a genuine safety component designed to prevent overheating in all Grant Vortex oil-fired boiler models. This thermostat acts as a critical fail-safe device, automatically cutting off the burner when the water temperature exceeds safe operating limits.

Fitted directly to the boiler’s control system, the VBS147 ensures reliable thermal protection, helping to safeguard your boiler against internal damage caused by temperature spikes. Whether you're replacing a faulty cut-out or upgrading during a service, this OEM thermostat provides peace of mind, safety, and compliance.

 Key Features & Benefits

• Official Grant Part – VBS147
  Fully approved and manufactured to Grant UK’s specifications for all Vortex models.

• Critical Safety Component
  Automatically shuts down the burner if the boiler water temperature exceeds preset safety limits.

• Manual Reset Button
  Features a reset function to restore operation after a safe cooldown period—no need to replace if triggered.

• Universal Fit for All Vortex Models
  Compatible across the full range of Grant Vortex internal and external boilers.

• Easy to Install
  Quick fitment with clearly labelled terminals and secure mounting design.

• Essential for Boiler Safety & Compliance
  Keeps your heating system in line with safety regulations and manufacturer standards.

Compatible Grant Boiler Models

The VBS147 High Limit Thermostat is suitable for all Grant Vortex boilers, including:

• Grant Vortex Utility and Eco Utility (15–70kW)

• Grant Vortex Pro and VortexBlue (internal and external)

• Grant Vortex Combi and Combi Pro models

• Grant Vortex Boiler House models

• Grant Vortex Eco Wall-Hung Units

Not sure if this part fits your specific model? Contact our expert support team with your boiler’s serial number for fast confirmation.

 When to Replace the High Limit Thermostat

Replace the high limit thermostat if:

• The boiler locks out due to overheating issues or thermostat failure

• The reset button fails to restore operation after temperature returns to normal

• The unit shows physical damage, corrosion, or burn marks

• You’re conducting a full safety and control system check or upgrade

A failed thermostat can compromise the safety of your boiler and lead to further component damage—timely replacement is essential.

Technical Specifications

• Part Number: VBS147

• Manufacturer: Grant UK

• Function: High limit safety thermostat

• Reset Type: Manual (button-operated)

• Temperature Rating: Cuts out at approx. 110°C (verify boiler manual for exact trip point)

• Application: Over-temperature protection in Grant oil-fired condensing boilers

• Mounting: Typically located on flow pipe or heat exchanger block

• Electrical Connections: 2-pin terminal block for quick connection