Sunlight Supply Samsung Programmable Thermostat for Split Systems - Manual (Page 91)

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Operation condition secession error
Indoor display ሱ ل ሱ Outdoor error
Outdoor display م ሱ ل AC zero cross signal error
1.Checklist :
1) Check the temperature around the outdoor unit.
2. Troubleshooting procedure
Is the opera Ɵon condiƟon secession
error appeared again?
YES
Terminate the service
NO
Restart a Ōer power oī
The temperature condi Ɵon is too poor to operate.
Wait un Ɵl temperature is changed
* Cooling mode *
Is the outdoor temperature under -
7 ć
* Hea Ɵng mode *
Is the outdoor temperature over
40 ć or under -30ć?
YES