- 189 -
Troubleshooting
8-2-23. Indoor unit float switch error
Outdoor unit display
Indoor unit display
Judgment method
Causes
(Operation)
(Timer)
(Fan)
(Filter)
(Removing frost)
- When the indoor unit float switch is open for longer than 1 minute
- Drain fan level increase due to the indoor unit drain pump failure, detection sensor bad
✳
E3 error is reset when the power of indoor unit is reset.
Is the indoor unit having
error cassette type?
Is the water in the drain pan much?
Reset the indoor unit power and
check the operation of drain pump.
Is the drain pump operating?
Is the level of drain fan low?
It operates normally.
Replace the drain pump.
Solve the problem, referring to page 28
drain pump(option)
Reassemble the float switch connector and
then reset the power of indoor
and outdoor unit.
Replace the PCB.
Replace the drain pump.
Replace the PCB of indoor unit.
It operates
normally.
Since it is the defect of float switch,
reset the power of indoor unit.
Is the terminal voltage of
drain pump PCB approximately
AC 220V?
Does the same error appears?
Is the resistance
∞
when measuring it, after
take out the float switch connector
connected to the indoor unit
PCB? (open state)
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
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Страница 366: ... 365 Wiring Diagram 10 1 4 Wall mounted type AVMWC AVMWH This Document can not be used without Samsung s authorization ...
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Страница 372: ... 371 Wiring Diagram 10 2 2 Heat pump 050 060 This Document can not be used without Samsung s authorization ...
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Страница 382: ... 381 Schematic Diagram 11 1 5 Floor Standing type AVMPC H This Document can not be used without Samsung s authorization ...
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Страница 384: ... 383 Schematic Diagram 11 1 7 Cooling only 060 070 This Document can not be used without Samsung s authorization ...
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