Kemppi KEMPACT 253A - Error 2: Mains Under Voltage; Error 3: Mains Over Voltage; Error 4: Wire Feed Motor Over Current; Handling Other Error Codes

SERVICE MANUAL
KEMPACT RA_V_1.2
35 (40)
Kemppi Oy
8.4. Secondary rectifier card, Z002
• Use a digital multimeter to test the secondary unit diodes. Diodes are in groups, so you can measure them in two
separate groups
Measurings:
1) Positive test pole to main transformer secondary (secondary card connectors X1 and X2 one at time), negative test pole to
secondary profile
Result: 0,3…0,6diodes Ok
2) Positive test pole to secondary profile, negative test pole to main transformer secondary (secondary card connectors X1 and
X2 one at time)
Result: no valuediodes Ok