ERT50 230v INSTRUCTION MANUAL
32
OTHER FUNCTIONS AND CONTROLS
Backlight
The backlight of the ERT50 230v is switched on
automatically whenever any of the keys are pressed. The
backlight will remain illuminated for approximately 10
seconds after the last key press. If the room temperature
is higher than 35 °C, the backlight will blink on and off.
The backlight will not illuminate if there is no mains
supply to the controller.
Control Status
The ERT50 230v indicates on the LCD the control status
by using a selection of display icons.
Heating:
The display will show the word ‘Heat’ and an animated
flame icon when in HEATING mode.
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