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Building Technologies Division  Basic Documentation LME7...  CC1P7105en 
Infrastructure & Cities Sector  23 Operation via AZL2…  29.11.2011 
 
23.7 Service level 
 
The service level is used to display information about errors including the error history. 
 
 
Note: 
When on the service level, you can press   or   to display the next or the previous  
parameter. 
Instead of pressing  , you can also press 
reset
 for < 1 second. 
 
 
 
Note: 
Press 
ESC
 or 
reset
 for > 8 seconds to return to the normal display. 
 
 
 
Parameter
Parameter value
 
Figure 90: Servic level 
 
Note: 
No change of values on the service level. 
 
If characters   are displayed by the parameter, 
the value may consist of more than 5 digits. 
Press  
reset
 for >1 s and <3 s to display the value. 
Press  
reset
 for >3 s or 
ESC
 to return to the 
selection of the parameter number (flashing). 
 
 
23.7.1  Display of the service level 
 
reset
 
P
Vh
mi n
s%
Bild 21/0707
 
Press  
reset
 for > 3 s until SEr appears. 
When releasing 
reset
, you are on the service level. 
 
No. 
Parameter 
Service level 
 
920  Current PWM signal fan 
936  Normalized speed 
951 
Mains voltage 
954  Flame intensity