Post by MG1 on Aug 27, 2022 19:20:11 GMT
I am having 2 issues in regard to machine disinfection for Braun machine version 9.12. When I put in heat disinfection, everything is fine until the temp gets up into the 80s. Then that is when the PE pressure starts to drop and the EP pump turns off and on and the heater cuts out, as I know is due to the low PE pressure. I checked all my tubing connection. There are no appearant leaks and everything is tight.
2nd issue is when I put in citric thermal, when the uf pump starts running to pull in the citric acid, the disinfection valve never opens up in order to suck it in. it therefore pulls in air and then alarms"Cannot draw disinfecctant". I know the VD is not supposed to open unless the pda is at a certain pressure and upline tank is at low level. But the tank does read at low level when the uf pump turns on, and it goes to medium of course because the uf pump is pumping is fluid from the air separator, but the disinfection valve does not open.
2nd issue is when I put in citric thermal, when the uf pump starts running to pull in the citric acid, the disinfection valve never opens up in order to suck it in. it therefore pulls in air and then alarms"Cannot draw disinfecctant". I know the VD is not supposed to open unless the pda is at a certain pressure and upline tank is at low level. But the tank does read at low level when the uf pump turns on, and it goes to medium of course because the uf pump is pumping is fluid from the air separator, but the disinfection valve does not open.
