Troubleshooting
4-30 Samsung Electronics
4-4-22 Problematic external PBA error
Indoor unit display
(Electric current protection control error)
(Problematic external controller internal voltage error)
(Problematic external controller internal voltage sensor error)
(Problematic external controller internal voltage sensor error)
(Problematic radiator temperature sensor error)
(AC overvoltage protection error)
(Problematic external controller incoming current sensor error)
Outdoor unit display
●
(YEL)
◎
(GRN)
●
(RED) - when E462
○
(YEL)
●
(GRN)
◎
(RED) - when E466/E483
●
(YEL)
◎
(GRN)
◎
(RED) - when E469
●
(YEL)
●
(GRN)
◎
(RED) - when E472
○
(YEL)
◎
(GRN)
◎
(RED) - when E474
◎
(YEL)
◎
(GRN)
●
(RED) - when E485
1. Cause of malfunction
1) Abnormal incoming power supply (outside of 187~253V)
2) Problematic outdoor unit PBA
2. Check procedure
1) Check to see if input voltage is normal
2) Replace outdoor unit PBA
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