Grant 400 Servomotor Brazia Wps04X Spira

Woodpellet burner in house only

Grant 400 Servomotor Brazia – WPS04X

Part Number: WPS04X
Genuine Servomotor for Grant Spira Biomass Boilers – Ensures Precise Fuel Feed Control

The Grant WPS04X 400 Servomotor Brazia is a genuine replacement motor designed to deliver precise and reliable operation of the auger and brazier mechanisms in Grant Spira biomass boilers. This component plays a critical role in regulating the fuel feed and air intake, ensuring optimal combustion efficiency and consistent heat output.

Whether you're performing scheduled maintenance or replacing a faulty unit, this original Grant servomotor offers dependable performance, exact fitment, and long-term durability—making it a smart choice for both professional engineers and informed DIY users.

Key Features & Benefits

•  Genuine Grant Replacement Part – Ensures optimal compatibility and reliability

•  Regulates Auger/Brazier Movements – Supports accurate fuel and air delivery

•  Smooth & Precise Operation – Helps maintain steady combustion and efficiency

•  Plug & Play Installation – Minimises downtime during maintenance or repair

•  Improves Boiler Response Time – Enhances overall heating performance

Compatible Grant Boiler Models

• Grant Spira 5kW

• Grant Spira 9kW

• Grant Spira 18kW

• Grant Spira 26kW

 Always confirm compatibility using your boiler’s service manual or serial number.

When to Replace the Servomotor (WPS04X)

• Erratic or inconsistent fuel feed

• Boiler fault codes related to auger or burner movement

• Audible strain or failure to turn during operation

• As part of scheduled servicing for high-use systems

Technical Specifications

• Part Number: WPS04X

• Type: 400 Servomotor Brazia

• Material: High-strength plastic and metal gearing

• Function: Controls motion of fuel delivery mechanism

• Power Supply: Boiler-integrated (consult boiler manual)

• Manufacturer: Grant Engineering (UK)