View Full Version : mcquay screw3200

25-10-2012, 09:20 AM
i went for replacement of oil.switched of the compressor,,,during pumpumpdown prosses the whole chiller tripped.after i checked the fuse bank 1 fuse was blown..remember there was soft starter of banshaw..then i checked scr relay 1 relay was showing continiuty ..i replacd the scr relay and perfomed meggering windindingwas grounded...please tell me is the scr relay is cause of this or some other things like mechanical problem...