The Gledhill control hub of the appliance is the printed circuit board. It controls all operations through the switches, sensors and thermostats. Additionally, it enforces safety precautions, ensuring that the boiler shuts off if any internal readings indicate a problem with the boiler's operation.

Brand Name	Gledhill
Colour	green
Material	Printed Circuit Board
Manufacturer Model No	XB041
Wear Type	N/A
Type	Printed Circuit Board
Certifications Met	N/A
Country of Origin	N/A
Protects From	N/A
Waterproof	N/A
Number of Pockets	N/A
Compatible With	GULFSTREAM II 12FF / 100L, GULFSTREAM II 12FF / 130 and GULFSTREAM II 13FF /35
ERP Rating	Not Applicable