Samsung FH18BTA(X) Service Manual page 73

Troubleshooting
I B Type(COM2) Error Description
Display
Compressor down due to protection control of the discharge
temperature sensor
Control due to the condenser temperature sensor when cooling mode
Error of the low pressure switch (Protection control)
Reverse phase error (Protection control)
In removing frost
Error of the outdoor temperature sensor (Open/Short)
Error of condensor temperature sensor (Open/Short)
Error of discharge temperature sensor (Open/Short)
- System down caused by communication error after completion of
- tracking
- Mismatching of the indoor unit numbers set with those
- communication after completion of 5 times tracking
Error of temperature sensor in the indoor unit (Open/Short)
Error of the heat exchanger sensor in the indoor unit (Open/Short)
Error of electronic expansion valve open in the outdoor unit
(when it is detected more than once)
Error of electronic expansion valve close in the outdoor unit
(when it is detected more than once)
Error of communication between the indoor unit and the wired
remote controller
Master wired remote controller ↔ Slave wired remote controller
COM1/COM2 Cross-installed error
Error of setting option for wired remote controller COM2
12-3
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Description Remarks
Error about protection
control of the outdoor unit
Error about the outdoor unit
sensor (Open/Short)
Detection during the
operation of the indoor unit
(sensing and sending errors
into the communication data)
Communication and the
indoor unit errors
Self-diagnosis of the
indoor and outdoor unit
Wired remote controller errors
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