Siemens CPU 31xC / CPU 31x Error MAINT: Maintenance demanded

Siemens CPU 31xC / CPU 31x · taken from the manufacturer’s manual, pages cited

Error codeMAINT

Maintenance is demanded for this unit. The manual lists no action for this code.

Model
Siemens CPU 31xC / CPU 31x
Display shows
Maintenance demanded (MAINT)
Type
Error code
Source
Manual p. 54

What MAINT means

Maintenance demanded p. 54

Common causes

  • Maintenance demanded p. 54

If MAINT is still not resolved

  • contact service / dealer p. 2
    “Legal information Legal information Warning notice system This manual contains notices y ou have to observe in order to en sure your personal safety, as well as to prevent damage to property.”
  • contact service / dealer p. 157
    “The CPUs will change to STOP m ode if you exceed the permissible size of local data for a priority class.”
Open the manual at page 54 All CPU 31xC / CPU 31x error codes Manual details & download

This page summarises what the manufacturer’s manual says about MAINT; 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 Siemens. Found a mistake? Report an error.