Summary
The video showcases a technician troubleshooting an E6 error on a new PCB of a split air conditioner. The technician meticulously tests fuses, checks PCB behavior, and examines components like optic couplers, diodes, and resistances to pinpoint the issue. By testing capacitors for functionality and identifying faults in the optic coupler and resistance, the technician plans to replace them to resolve the main problem. This detailed step-by-step troubleshooting process provides valuable insights into diagnosing and fixing complex electrical issues in air conditioning systems.
Identifying E6 Error
The technician identifies the E6 error on a new PCB of a split air conditioner and proceeds to troubleshoot the issue step by step starting with testing the fuses and checking the PCB behavior.
Testing Fuses
The main fuse of 15 amps is checked and found to be functioning correctly, connected in series with capacitors providing the proper beep sound.
Troubleshooting PCB Behavior
Checking the behavior of the PCB, testing the unit, and observing the E6 error persisting despite the PCB being powered on.
Testing Communication Circuit
Exploring the communication circuit, checking components such as optic couplers, diodes, resistance values, and voltage drops to ensure proper functioning.
Diode and Resistance Testing
Thoroughly checking diodes for correct polarity and voltage ratings, as well as testing resistances for accurate values to identify any faults in the circuit.
Testing Capacitors
Testing capacitors for their ability to block DC current by observing the beep sound when probes are applied, confirming the functionality of the capacitor.
Replacing Defective Components
Identifying a fault in the optic coupler and a resistance, planning to replace them to resolve the main problem of the PCB.
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