00229
Carrier Transicold
Info

Service Soon PM 4 Due

Notification that the fourth level of preventive maintenance (PM 4) is required.

Possible causes

  • PM4 hour counter reached
  • Scheduled deep overhaul
  • Long-duration interval reached

Recommended actions

  • Execute PM4 major maintenance protocol
  • Clean coils and check for leaks
  • Reset PM4 maintenance notice
  • Evaluate overall unit performance

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