Troubleshooting
Samsung Electronics 4-19
4-4-10 Self-diagnosis – detached indoor unit Outdoor unit pipe temperature sensor error
Indoor unit display
(Detached Indoor unit pipe entrance temperature sensor error)
(Detached Indoor unit pipe exit temperature sensor error)
Outdoor unit display
○
(YEL)
◎
(GRN)
●
(RED)
1. Cause of malfunction
1) Detached indoor unit pipe temperature sensor while running outdoor unit
2) Detached indoor unit pipe entrance temperature sensor
3) Detached indoor unit pipe exit temperature sensor
2. Check procedure
1) Inspect indoor unit pipe entrance temperature sensor
2) Inspect indoor unit pipe exit temperature sensor
4-4-9 When Indoor unit Terminal Block Fuse Error " " Indicated on the Indoor Temperature
display area
1. Cause of malfunction
1) Disconnection or loose connection of ERMINAL BLOCK FUSE
2) Disconnection of TERMINAL BLOCK FUSE
3) Faulty Main PBA
2. Check procedure
TERMINAL BLOCK NEEDS TO BE REPLACED.
TERMINAL BLOCK FUSE DISCONNECTION
No
CHECK WIRE CONNECTION CONDITION
REPLACE MAIN PBA
Yes
No
Is the wire on CN32 connector of MAIN PBA
properly connected?
Unplug Indoor unit and
Outdoor unit power cords
(Power off)
Yes
When measuring
the resistance of both ends of wire after
separate the wire from CN32 connector, Oohm or
short Is determined?
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