Samsung Electronics 64
Troubleshooting
4-2 Service Operation
4-2-1 Special Operation
► Setting key operation and checking the view mode with tact switch
► Key input of the outdoor unit when the service enters the operation mode.
K1 control KEY operation Display on segment
Press and hold 1 time Auto trial operation “K”“K”“BLANK”“BLANK”
K1
(Number of press)
KEY operation Display on segment
1 time Refrigerant charging in Heating mode “K”“1”“BLANK”“BLANK”
2 times Trial operation in Heating mode “K”“2”“BLANK”“BLANK”
3 times Pump out in Heating mode (Outdoor unit address 1) “K”“3”“BLANK”“1”
4 times Pump out in Heating mode (Outdoor unit address 2) “K”“3”“BLANK”“2”
5 times Pump out in Heating mode (Outdoor unit address 3) “K”“3”“BLANK”“3”
6 times Pump out in Heating mode (Outdoor unit address 4) “K”“3”“BLANK”“4”
7 times Vaccuming (Outdoor unit address 1) “K”“4”“BLANK”“1”
8 times Vaccuming (Outdoor unit address 2) “K”“4”“BLANK”“2”
9 times Vaccuming (Outdoor unit address 3) “K”“4”“BLANK “ “3”
10 times Vaccuming (Outdoor unit address 4) “K”“4”“BLANK”“4”
11 times Vaccuming (All outdoor units) “K”“4”“BLANK”“A”
12 times Inverter Fault Detection(Comp#1) “K”“5”“I”“1”
13 times Inverter Fault Detection(Comp#2) “K”“5”“I”“1”
14 times Inverter Fault Detection(Fan#1) “K”“5”“F”“1”
15 times Inverter Fault Detection(Fan#2) “K”“5”“F”“2”
16 times End Key operation -
• After installing the product, be sure to perform leak tests on the piping connections. After pumping down refrigerant to inspect or relocate the outdoor
unit, be sure to stop the compressor and then remove the connected pipes.
- Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe or an unconnected or incorrectly
connected pipe. Failure to do so may cause air to flow into the compressor and too a high pressure to develop inside the refrigerant circuit, leading to an
explosion or product malfunction.
WARNING
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