;
   Phone: (281) 769-2671      
       
   E-mail:  service@kfasllc.com      
       
     Fanuc Series 16i/ 18i/ 16i-MA/ 18i-MA/ 160i-MA/ 180i-MA Troubleshooting Information/ Procedures/ Alarm codes
       
  Replacement procedure for Backlight on LCD display  (Order inquiry for LCD or LCD backlight)
  Fanuc 16i/ 18i/ 21i SRAM backup (Watch video on YouTube)
  Fanuc 16i/ 18i/ 21i SRAM backup (instructions in PDF file)
 
   Fanuc 16i/ 18i Maintenance Manual: B-63005E    
   Alarm List and Description      
     CRT Blank (Nothing is displayed on the CRT)    
     
     Program Errors (P/S Alarms)    
   
     Absolute Pulse Coder (APC) Alarms (Alarm 300, 301, 302, 303, 304, 305, 306, 307, 308, 309)  
Troubleshooting steps: Alarm 301 to 305    
  Alarm 306 to 308    
     
     Serial Pulse Coder (SPC) Alarms (Alarm 350, 351)    
Troubleshooting steps: Alarm 350    
  Alarm 351    
   
     Servo Alarms (Alarm 400, 401, 404, 405, 407, 409, 410, 411, 413, 414, 415, 416, 417, 420, 421)  
Troubleshooting steps: Alarm 400    
  Alarm 401    
  Alarm 404 and 405    
  Alarm 410    
  Alarm 411    
  Alarm 414 (A06B-6096-Hxxx servo alarms)
  Alarm 416    
  Alarm 417    
   
     Over travel alarms (Alarm 500, 501, 502, 503,, 504, 505, 506, 507, 508, 509, 510, 511)  
       
     Overheat alarms (Alarm 700, 701, 704)    
Troubleshooting steps: Alarm 700, 701 How to replace control cooling fan  
       
     Serial Spindle Alarms (Alarm 749, 750, 7101 through 7159)  
Troubleshooting steps: Alarm 749    
  Alarm 750    
  Alarm 7101 through 7159 (see below)    
   (A06B-6088-Hxxx and A06B-6102-Hxxx spindle unit alarms)  
       
     System Alarms (Alarm 900, 914, 915, 916, 920, 922, 924, 930, 950, 951, 972, 973, 974, 975)  
Troubleshooting steps: Alarm 900    
  Alarm 914, 915    
  Alarm 916    
  Alarm 920, 922    
  Alarm 924    
  Alarm 930    
  Alarm 950    
  Alarm 951    
  Alarm 972    
  Alarm 973