Troubleshooting
Samsung Electronics 139
■AM080/100/120/200FXWASS
► Key input of the outdoor unit when the service enters the operation mode.
K1 (Number of press) Key operation Display on segment
Press and hold 1 time Auto trial operation K, 1, BLANK, BLANK
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 -
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
HR: Pipe connection inspection
H/P: Auto trial 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 status)
6 times Discharge mode of DC link voltage K, A, BLANK, BLANK
7 times Forced oil collection K, C, BLANK, BLANK
8 times Inspect inverter compressor 1 K, D, BLANK, BLANK
9 times Inspect inverter compressor 2 K, E, BLANK, BLANK
10 times Water pipe valve/Pump check K, F, BLANK, BLANK
11 times Cooling fan/Flow control valve check K, G, BLANK, BLANK
12 times End key operation -
K3 (Number of press) Key operation Display on segment
1 time Intialize (Reset) setting Same as initial state
※ During "Discharge mode of DC link voltage", voltage of INV1 and INV2 will be displayed alternately.
※Even when the outdoor unit power is off, it is dangerous when you come in contact with inverter PBA and fan PBA since they are charged with high DC
voltage.
※When there were error, 'Dicharge mode of DC link voltage' may not have been effective. Especialy if error E464 and E364 have been occured, power
element might be damaged by fire and therefore, do not use the 'Discharge mode of DC link
4-2 Service Operation (cont.)
4-2-1 Special Operation (cont.)
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