Samsung Electronics 134
Troubleshooting
4-2 Service Operation
4-2-1 Special Operation
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 Vacuumig (Outdoor unit address 1) K, 4, BLANK, 1
8 times Vacuumig (Outdoor unit address 2) K, 4, BLANK, 2
9 times Vacuumig (Outdoor unit address 3) K, 4, BLANK, 3
10 times Vacuumig (Outdoor unit address 4) K, 4, BLANK, 4
11 times Vacuuming (All outdoor units) K, 4, BLANK, A
12 times End Key operation
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Press and hold 1 time Auto Trial Operation
K, K, BLANK, BLANK
K2 (Number of press) Key operation Display on segment
1 time Refrigerant charging in Cooling mode K, 5, BLANK, BLANK
2 times Trial operation in Cooling mode K, 6, BLANK, BLANK
3 times Pump down all units in Cooling mode K, 7, BLANK, BLANK
4 times
H/R: Checking the pipe connection
H/P: Automatic setting of operation mode (Cooling/Heating)
for trail operation
K, 8, BLANK, BLANK
5 times Checking the amount of refrigerant
“K” “9” X X (Display of last two digits may
differ depending on the progress)
6 times Discharge mode of DC link voltage K, A, BLANK, BLANK
7 times Forced defrost operation K, B, BLANK, BLANK
8 times Forced oil collection K, C, BLANK, BLANK
9 times Inverter compressor 1 check K, D, BLANK, BLANK
10 times Inverter compressor 2 check K, E, BLANK, BLANK
11 times Fan 1 check K, F, BLANK, BLANK
12 times Fan 2 check K, G, BLANK, BLANK
13 times End Key operation
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※ When PBA will be replaced or repaired , please shut off the power after carrying out discharge mode without fail
※ When discharge mode is progressing, DC voltage of inverter PBA 1 & inverter PBA 2 indicate on display alternately.
If LED display of inverter PBA 1 & inverter PBA 2 will be turned off and "OK" is displayed, a discharge is completed.
※If INV error is occurred(E464/364, E461/361, etc.), please wait more than 15 minutes until self-discharging after shutting off the power
because it can not enter a discharge mode.
※If normal completion discharge mode or self-discharge will be not completed, it is very dangerous to contact because a high DC voltage of
inverter PBA is charged.
■AM080/100/120/140/160/180/200/220FSXVSGS
► Key input of the outdoor unit when the service enters the operation mode.
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