SAMSUNG | 151
TROUBLE SHOOTING & ERROR MODE
7
Fault Diagnosis by Symptom (Cont.)
●
EC04 : When the trouble is found on the drain pump and float switch installed on the indoor unit.
EC01 : Trouble on the thermistor related part of indoor unit.
- E9 of 7-segment of outdoor unit PCB
- Reservation lamp of wireless receiving board and filter lamp are flickering with 1 Hz.
- Action item when “*9” displays on the wireless remote controller.
Replace PCB
YES
YES
NO
NO
YES YES YES
Is available float
SW?
SW2 ON?
SET SW2 OFF
SET SW3 OFF
SET SW2 OFF
SET SW3 OFF
Power RESET
Start
SW3 ON?
Install float SW
✽
“*” stands for the indoor unit address.
SW2 ON?
Is available drain
pump?
Check the
float SW
Replace
indoor unit
PCB
- Indoor unit defect
- Drain pump, float switch defect
Check point :
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