CC_a031 — Pll Lock Lost
Full alert identifier: CC_a031_pllLockLost
Alert description
Alternating current (AC) line phase-locked loop (PLL) failed to lock. Check grid frequency and quality.
Potential impact
Ground fault circuit interrupter (GFCI) cannot function without locked PLL, wall connector will not operate.
Set condition
PLL was unable to identify valid grid frequency and phase.
Clear condition
AC line PLL successfully locks.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of CC_a031.