29Samsung Electronics
Control Specification & Troubleshooting
No
Refer to the drain pump
option in the next page.
5-3-6 Indoor floating switching error
No
No
No
No
No
To exchange the indoor unit PCB
To exchange the drain pump
To exchange the drain pump
To exchange the indoor unit PCB
Yes
Yes
Yes
Yes
Yes
Yes
Yes
To reset the indoor unit power
and check the drain pump operation
Normal operation
Normal operation
To determine the floating switch
bad To reset the indoor unit
power after exchange
Is the resistance value ∞
when measuring the resistance value
of two terminal after taking out the floating
switch connector connected to indoor
unit PCB? (Open status)
Is much the water of drain pan ?
Is the indoor unit
error occurred cassette type?
Is operated the drain pump?
Is lowing the water level?
Is the same error occurred?
Is the terminal voltage
of drain pump PCB about
AC 220V?
To re-assembly the floating switch
connector and perform the reset of
outdoor power(Required the reset of
indoor unit power)
❋ Note : E3 error should be released when
indoor unit power is reset.
Outdoor unit display
Indoor unit display
How to determine
Reason of error
Er → E3 (Indoor floating switching error )
(Operation) (Timer) (Airflow) (Filter)
The status continues over 1 minute that indoor unit floating switch is opened.
The rising of water level of drain pan due to the disorder of indoor unit drain pump,
the badness of detection sensor
No
DB98_14413A(1)_1** 10/9/03 5:41 PM Page 29
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