Selected by PAR 1620: RUN ENABLE DAMPER END VALVE OPENING PRE-LUBE CYCLE means the "Run Enable" condition is not satisfied or power supply is faulty. The manual's first action is: “Check 24 Volts on RBCU unit Check for 24 volts on respective DI when condition is satisfied Check Parameter 0103 for status of digital input”
- Model
- ABB ACH550
- Display shows
- 4006
- Type
- Alarm code
- Source
- Manual p. 72
What 4006 means
Selected by PAR 1620: RUN ENABLE DAMPER END VALVE OPENING PRE-LUBE CYCLE p. 72
Common causes
- Alarm will occur when start order is given and the "RUN Enable" is not present p. 72
- Run Enable condition is not satisfied. p. 72
- Bad 24v supply p. 72
- Bad digital input p. 72
What to do
- Check 24 Volts on RBCU unit Check for 24 volts on respective DI when condition is satisfied Check Parameter 0103 for status of digital input p. 72
Before you service the product, read the safety instructions in the manual p. 2.
If 4006 is still not resolved
- contact the factory or your local Authorized Service Center for repair or replacement. p. 2 “Never attempt to repair a malfunctioning ACH550; contact the factory or your local Authorized Service Center for repair or replacement.”
This page summarises what the manufacturer’s manual says about 4006; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with ABB. Found a mistake? Report an error.