Carrier 40MAQ Series - Zero Crossing Detection Error Diagnosis and Solution (E2)

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Zero crossing detection error diagnosis and solution (E2)
Error C ode E2
Malfunction
decision con-
ditions
When PCB does not receive zero crossing
signal feedback for 4 minutes or the zero
crossing signal interval is abnormal
Supposed
Causes
S Connection mistake
S PCB faulty
Troubleshooting: