Grant Printed Circuit Board & Sensor Pcb Mpcbs54X

VORTEX & COMBI V3 Old Part No. MPCBS54

Grant Printed Circuit Board & Sensor PCB – MPCBS54X

Genuine Control Board for Grant Vortex & VortexBlue Boilers

Ensure precise, reliable control of your Grant boiler with the Grant MPCBS54X Printed Circuit Board & Sensor PCB. This OEM replacement board is the nerve center of your heating system, managing ignition, pump operation, fan speed, safety interlocks, and sensor feedback. Designed for select Grant Vortex and VortexBlue models, the MPCBS54X restores full functionality after faults or board failure—making it an indispensable part for both professional heating engineers and confident DIYers.

 Key Features & Benefits

• Genuine Grant Part – MPCBS54X
  Manufactured to exact Grant specifications for guaranteed compatibility and long-term reliability.

• Integrated Sensor Inputs
  Accepts temperature, pressure, flow, and flame-detect sensors to provide real-time system management.

• Comprehensive Control
  Coordinates ignition sequence, fan modulation, pump and valve activation, and safety shut-offs.

• Diagnostic LEDs
  On-board indicator lights simplify fault-finding and speed up troubleshooting.

• Robust Construction
  High-quality PCB materials and conformal coating protect against moisture, vibration, and heat.

• Direct “Plug-In” Replacement
  Identical mounting points and connector layout make swap-out quick and error-free.

 Compatible Grant Boiler Models

Suitable for use in these Grant condensing boilers (post-2009 models unless stated), when fitted with the “long” style PCB harness:

• Grant Vortex Pro Internal & External (all combi and system variants)

• Grant VortexBlue Combi & System

• Grant Vortex Eco Combi (post-2012)

• Grant Vortex Utility & Eco Utility

Always verify the existing part number and harness style before ordering. Contact our support team with your serial number for confirmation.

 When to Replace the PCB & Sensor

You should replace the MPCBS54X board if:

• Persistent Control Fault Codes appear (e.g., ignition lockout, fan error)

• The boiler fails to respond or intermittently loses power to pumps, fan, or valves

• Sensor readings (temperature/flow) are ignored or erratic

• The PCB shows signs of burn marks, corrosion, or moisture ingress

• During a complete control system overhaul or after other component failures

Timely replacement prevents nuisance lock-outs, maintains efficiency, and ensures safe operation.

 Technical Specifications

• Part Number: MPCBS54X

• Manufacturer: Grant UK

• Type: Printed Circuit Board with integrated sensor interfaces

• Power Supply: 230 V AC mains via internal transformer

• Connectors: Multi-pin harness for sensors, fan, pump, valves, and user interface

• Operating Temperature: Up to 85 °C ambient (protected inside boiler casing)

• Protection: Conformal-coated PCB to resist moisture and dust

• Dimensions: Matches original Grant “long” PCB format