.

LED number 14 is blinking and the ready light is off

- Negative pressure/ airflow too low!

Step 1

Turn off the pressure regulator..

 

  remove the plug at the inspection cover..   install the digital manometer..  
     
turn up the pressure until it reaches 60 mmH2O..   the LED 14 will stop blinking, and
the OMD will go back to ready mode
     

 

If this does not help, do as follows..

 
Open the inspection cover..   replace both scavenging air filter (10042) and circlips (10041)
(do not clean the filters!!)
  close the inspection cover  

 

If this does not help, do as follows..

 
Open the inspection cover..   use the "cleaning needle" (10135) and put it into the hole at the right side and the left side..   close the inspection cover.  

 

If this does not help, do as follows..

 
Remove the measuring head housing..   check the seal for measuring head. If damaged, change the seal (10022)   check both flexible bellows under the vibration damp plate. If it is damaged, change the flexible bellows (10023) .  

 

If this does not help, do as follows..

 
Disconnect the ejector input..   clean the unit with clean spray for OMD..   reinstall the ejector input.  

 

If this does not help, do as follows..

 
Disconnect the ejector output..   clean the unit with clean spray for OMD..   reinstall the ejector output.  

 

If this does not help, do as follows..

Replace measuring head housing and electronic module.
Use our ExP for this procedure

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