50
11.3 E2: Anti-Freezing Protection
Possible Causes
Check the air flow. Make sure the inlet and outlet of both indoor and outdoor unit is
not blocked.
Check the air filters and make sure they are clean.
Check the indoor tube sensor F2 by referring the value from “Appendix II” on page
125. If it is broken, then replace the sensor. If the sensor is good, then replace the
indoor PC board.
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