1: Press the
button to turn off the screen.
2: Press and hold the down arrow button until an 02 appears in the Roof Temp, when you see the 02 appear remove your finger.
3:
Using the
button - short continuous
pushes until you see 02 on the top (Roof Temp) and 5 underneath (House Temp) NB:
The light should go off.
4:
Press the
and this will save your
changes.
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