FYI
This is regarding the PB 840 ventilator system. We have a number of these in use and find them generally very reliable; however, two of our units have a history of intermittent crashing (totally locking up whilst in use)? The error log in our situation gave no apparent cause for this. However a few months ago it was accidently discovered that on both of these vents the external battery connector retaining screws had broken free (Even though the connection appeared secure)! After re-securing the battery connectors we have had no more problems whatsoever! In all “crash cases” the vent passed its subsequent EST including the battery test.
My reason for posting this? If anyone else has similar symptoms it may be a good place to start!
Regards
Eddie
