Error code37
CB OVERTEMP indicates the drive control board has overheated due to ambient temperature, fan failure, or obstructions. The manual's first action is: “Check for and correct: • Excessive ambient temperatures • Fan failure. • Obstructions in the air flow.”
- Model
- ABB ACH550
- Display shows
- CB OVERTEMP (37)
- Type
- Error code
- Source
- Manual p. 27
What 37 means
CB OVERTEMP p. 27
Common causes
- Drive control board overheated. p. 27
What to do
- Check for and correct: • Excessive ambient temperatures • Fan failure. • Obstructions in the air flow. p. 27
Before you service the product, read the safety instructions in the manual p. 2.
If 37 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 37; 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.