IMDC(RS) informed there was air-con cond3667/ ensation in car 2668. CHD spare train was used to replace itat PSR. ~~~~~ Found 2668 AC1 and AC2 with slight condensation. Cleaned thermister on both units and replaced AC filter. Function checked ok. AC able to cut-in/out. Monitored for 2 hours - no recurrance of condensation. N.A/rawi/yanto/22.01.23