Samsung AC009BNLDCH, Руководство по обслуживанию, Страница: 252 / 330

Troubleshooting
4-58 Samsung Electronics
4-4-3. Indoor unit float sensor error (E153)
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Remove the floating sensor
connector connected to the indoor unit PCB and
the resistance measured between the two
terminals. Is the resistance ∞?
(open circuit)
Is the water level
in the drain pan high?
Does drain pump operate when
compressor operates?
Same error occurs again
No
Is the water level in drain
pan decreasing?
Reset the indoor unit power and check
the operation of the drain pump.
(Vibrates when operating)
Normal operation
Replace the indoor unit PCB
Reassemble the floating sensor
connector and reset the outdoor unit power.
(Indoor unit power reset is required)
Normal operation
Replace the floating sensor when it
fails and reset the indoor unit power
Replace the drain pump
Error occurs
[DC drain pump PCB]
Is the voltage of terminal (CN802)
approximately DC12V?
Replace the DC drain pump
Replace the indoor unit PCB
Yes
No
∙ Float sensor error is cleared only when
the indoor power is reset.
Display
Outdoor Unit display E153
Wired remote Control, Wind Free RAC E153
Duct, 1way Cassette
4way Cassette,
4way Cassette(600x600)
360 Cassette
or or
or
GRN ● ↔ BLUE●
Duct
Blue Red
1way
Blue Yellow
X X X
◑ ◑
X X
◑ ◑
Judgment
method
Refer to checking method, as shown below
Symtom
If the increase in the drain pan water level due to failure of the indoor unit drain pump or indoor unit
float switch is open and that state is maintained for more than one minute.