Samsung Electronics 142
Troubleshooting
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During Discharging mode, voltage of Inv1 and Inv2 will be displayed alternately.
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Even when the power is o, it is dangerous when you come in contact with inverter PBA, fan PBA since high pressure DC voltage is charged
to those parts.
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When replacing or repairing the PBA, cut-o the power and wait until the DC voltage is discharged before replacing/repairing them.
- Wait for more than 15 minutes to allow those parts to be fully discharged.
غHow to proceed
Press K2 button 6 times shortly.
Caution
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When there is error, Discharge mode of DC link voltage may not have been eective. Especially when E464 and E364
error is displayed, power element might be damaged so do not use the Discharge mode of DC link voltage.
K2 button
Items Cooling
Key
Number K2
Push time 6
Display
“ ” “ ” Inv. 2 DC voltage “ ” “ ” Inv. 1 DC volt
Ex) 445V ױ 0445
ఐ Below 30 Volt, “ ” “ ” “ ” “ ” displays.
4-4 Case study for trouble shoots (cont.)
4-4-1 Electric discharge mode (cont.)