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Service Manual -
VMH 9/12/18/24 SU & VMH30/36S D Series
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9.3.3 Zero crossing detection error diagnosis and solution (E2)
Error Code
E2
Malfunction conditions When PCB does not receive zero crossing signal feedback for 4
minutes or the zero crossing signal time interval is abnormal.
Possible
causes
●
Connection
error
●
PCB faulty
Troubleshooting:
Check if the connections and
power supply are normal?