Norcold N500 - Page 3

DRAFT
NOT FOR PUBLIC RELEASE
ii Refrigerator Service Manual www.norcold.com/cda N500/N510 Models
Replacing Optical Control Circuit Board - N510 ............. 47
AUTO Mode - All N510 Units............................................ 48
AUTO Mode – N510.3 (3-way units) ................................ 48
AUTO AC Operation ......................................................... 48
AUTO LP Gas Operation .................................................. 48
N510 Modes of Operation.................................................. 48
Troubleshooting a "F" and "A" Faults ............................... 48
Shift from AUTO LP Gas to AUTO AC - 2-ways ............... 48
No AC Power and No Flame............................................ 48
AUTO DC Operation – 3-Way Units Only ........................ 49
AC Manual Mode .............................................................. 49
No AC Power or Loss of AC Power .................................. 49
Troubleshooting an "A" Fault ........................................... 49
AC Power Restored .......................................................... 49
LP Gas Manual Mode ....................................................... 50
Flame Fails to Ignite or Flame Goes Out ........................ 50
Clearing "Gas Lock-Out" .................................................. 50
Troubleshooting an "F" Fault ........................................... 50
DC Manual Mode: 3-Way Units Only ............................... 50
Troubleshooting a DC Fault ............................................. 50
N510 Diagnostic Mode --------------------------------------- 51
Diagnostic Mode ................................................................ 51
Accessing the Diagnostic Mode ........................................ 51
Changing Screens............................................................ 51
Exiting the Diagnostic Mode............................................. 51
Screens and Diagnostic Segments Information ............. 52
Wiring Pictorials and Diagrams-------------------------- 54