3645 Snaprep. feedback #1E ceiling havin ~~~~~ 3645 Snaprep. feedback #1E ceiling having condensation.  3645 A/c 1 & 2 filters replaced with KNS type. Purging of No.1 & 2 end drain pipes - Done. Checked return air grill gap insulation packing - OK. Set saloon temp. to 25'C for both A/c 1 & 2 - Done. Function check - OK.  Chan GF/Hanafi 43851