hi there

i have a problem with plutzmeister m760 concrete machine 

the owners forget the display password and the entered it many time so the display probably locked the whole machine so even the engine not responded and shows DPF sign on the screen

so i've done a DPF off  for EDC17CV45

 the engine stated but the DPF sign stay still and nothing responding to any of the controller panel buttons 

if there any suggestion and attend to pay for it 

Putzmeister M760 Password Issue

I understand your situation with the Putzmeister M760 concrete machine. This is a challenging problem that occurs when incorrect password attempts lock out the system.

Current Situation

• Display password was forgotten and entered incorrectly multiple times
• Machine is now locked, including engine response
• DPF sign showing on screen
• You've performed a DPF off for the EDC17CV45 controller
• Engine starts but DPF indicator remains and control panel buttons don't respond

Possible Solutions

1. Reset Password Screen

The Putzmeister system typically has a reset password functionality in the maintenance screens. Since you can't access this now, you'll need alternative approaches.

2. Manual Override

Check if there's a maintenance switch for SCC system failure that might allow basic operations while bypassing the locked display.

3. Contact Putzmeister Technical Support

This is likely your best option. Putzmeister technical support can:

• Provide specific reset codes for your machine model
• Guide you through a system reset procedure
• In some cases, they may need to send a technician with specialized equipment

Recommended Action

I recommend contacting Putzmeister's technical support directly. This issue typically requires manufacturer intervention, as it involves security features designed to prevent unauthorized access.