Samsung AM250FNBFEB/EU User Manual

Troubleshooting
Samsung Electronics 4-67
Outdoor unit display
4-4-23 Communication Error between Indoor and Outdoor Units after Tracking
×(Operation) ስ (Reservation) ስ (Blast) ×(Filter) ×(Defrost)
 Communication error between indoor and outdoor units and setup err or of indoor unit installation quantity setup switch.
Indoorunit display
Judgment Method
Cause of problem
 Outdoor unit is unable to communicate for tw o minutes during operation. (no reception of relocation)
1.
Cause of problem
Press the reset key (K3) of the outdoor unit PCB
and check the display module.
Is the voltage between
the 2 cables a square wave with DC±0.7V or more
as shown in the image below?
Is there no indoor unit
response
at all from the display module during
the tracking?
Remove the communication cable that connects
the outdoor unit to the indoor nit, and measure
the 2 outdoor unit cables with a scope.
Connect the communication cable again to
connect the outdoor unit to the indoor unit.
Remove all the communication connectors on the PCB of
the indoor unit, and connect them one by one to find
the indoor unit which interferes with the communication
to check and change the indoor unit PCB.
After two
minutes, find the indoor unit which displays
the communication error and check if the PCB address
settings are overlapped.
(Communication error occurs if the indoor unit
addresses are overlapped.)
- In this case, the communication error will occur in
every indoor
unit (2 or more units) with the address incorrectly set.
Check the communication cable and the
connector for the outdoor unit PCB,
and change the PCB.
0.7V
0.7V
Good
Defective
If there is no peculiarity in the address, check
the communication cable and change the indoor unit PCB.
Yes
No
No
Yes
* Essential Requirements before Changing PCB in
Case of Communication Error: Refer to p.50

Samsung AM250FNBFEB/EU Specifications

General

Type	Air conditioner indoor unit
Multi-split	-
Product color	White
Gas hose diameter	15.88 mm
Liquid hose diameter	9.52 mm
Refrigerating medium	R410A
Air conditioner functions	Heating
Heating capacity (nominal)	85300 BTU/h
Heating capacity in watts (max)	25000 W
Cooling capacity in watts (nominal)	- W
Operating temperature (heating) (T-T)	-20 - 24 °C
AC input voltage	220-240 V
Current (heating)	23.1 A
AC input frequency	50-60 Hz
Design load (cooling)	- kW
Energy efficiency scale	A+ to G
Power consumption (heating) (max)	5000 W
Hourly energy consumption (cooling)	- kWh
Energy efficiency class (heating) (Average heating season)	A+
Indoor unit type	Wall-mountable
Indoor unit depth	330 mm
Indoor unit width	518 mm
Indoor unit height	1210 mm
Indoor unit weight	104000 g
Indoor units quantity	1
Indoor unit package depth	426 mm
Indoor unit package width	652 mm
Indoor unit package height	1289 mm
Indoor unit package weight	107000 g
Indoor unit sound power level	42 dB
Indoor unit noise level (high speed)	61 dB
Outdoor unit noise level	- dB