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Eberspacher EasyStart Pro control unit (controller display - not a heater code) error code Service

FaultDiesel Air HeatersVerified against the manufacturer's manual

Heater fault that only a specialist workshop can remedy (heater message). On an Airtronic 2 this message class (1: Service) covers most heater faults, including the start lock-out after 10 failed starts (P00012B / 050). The same word is also shown as the workshop-set MAINTENANCE-interval reminder (sec 5.1) - see the known issue.

What to check, and in what order, is in the app. The flow Eberspacher EasyStart Pro - what the controller is showing (control-unit codes 1-9 + heater messages) walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.

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