Description: IR cooling fan motor malfunction
• The fan motor lock signal remains HIGH for a predetermined consecutive period of time while the cooling fan motor remains energized.
Remedy: 1 Check the FM3 connector for proper connection and correct as necessary. 2 Check FM3 for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 FM3 operation check. IPB J22IPB-1 (ON) IPB J22IPB-3 (LOCK) L-9. 5 Change PRCB. 6 Change DCPU2. 7 Change DCPU1.