We are pleased to report that we have two operational machines again thanks to a great effort last night by four Group members. D5310 was found to have a broken wire on the resistor bank above the AVR, which was preventing the generator from receiving excitation current. As soon as the wire was replaced the locomotive took power.
6940 had partially blocked compressor air intake filters which we suspect was causing the compressor to overheat and blow the fuse, exacerbated by the hot weather.
Both locomotives undertook a successful test run to Deeside and back with no further problems. Thanks to Iain Ross for the photo.