Salus RT520RF - Factory Reset; Error Codes; Battery Change

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8. Factory Reset
Thermostat has been reseted.
PLEASE NOTE: User settings will not
be deleted.
To reset the thermostat press and
hold together + +
buttons for 5 seconds.
To RESET RT520RF thermostat to it’s factory default settings please follow steps below:
Thermostat will display errors only when it’s connected to the boiler by OPENTHERM terminals (A / B). Please refer then to boiler manual. Each
boiler can have dierent error codes.
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9. Error codes
Turn the thermostat over so that the back is in front of you. Now look at the picture below:
INSERT THE BATTERIES, PAYING ATTENTION TO THEIR POLARITY!
10. Battery change
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