andrews MAXXflo EVO Series Installation And Maintenance Manual page 56

6.2.2 FLUE TEMPERATURE SENSOR (B8)
This is located at the Flue outlet of the heat exchanger.
• Unplug the sensor from the loom (squeeze the catch to release).
Connector
• Remove sensor by unscrewing anti-clockwise
• Replacement is the reverse.
6.2.3 AVS37 GUI DISPLAY
This is located in the centre of the heater inside the front cover.
• Switch off electrical supply to heater
• Remove the 4 fi xing screws located at the rear of the screen.
Securing screws
• Push off the wiring connector from the rear of the GUI
• Replacement is the reverse.
Maintenance
Flue sensor
56 MAXXfl o EVO