Fault code3010
INP PHASE A LOSS means phase A input is lost due to loose connector, wiring issue, or blown fuse. The manual's first action is: “Check J7 connector Check yellow wire on input block Check incoming voltage, phase to ground”
- Model
- ABB ACH550
- Display shows
- INP PHASE A LOSS (3010)
- Type
- Fault code
- Source
- Manual p. 68
What 3010 means
INP PHASE A LOSS p. 68
Common causes
- Loose J7 connector Loose wiring on Contactor assembly. Blown upstream fuse p. 68
What to do
- Check J7 connector Check yellow wire on input block Check incoming voltage, phase to ground p. 68
Before you service the product, read the safety instructions in the manual p. 2.
If 3010 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 3010; 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.
