I have a 2008T machine with 8,000 hours it is giving me a error saying dailyzer connected but it is not. I cleared the error but the blood pump rate is flashing 320 then to 150. The rotor is turning but it has a skip in it when turning. Do I need to replace the blood pump module?
In my experience the blood pumps are garbage on 6tos generation.
As far as the dialyzer connected message...i may be wrong because this solution is very simple, wiggle the hansons. The shunt assembly on the T is notorious for the buttons on the shunt being tempermental. I get that call a lot when the machine "wont go into test".
Based on the information you have given I think there are two issues happening. You have a bunk blood pump and the hansons aren't seated well enough.
But like I said, those are the simple answers and I'm confident that you knew that already.
There are two buttons on the shunt assembly. Make sure they are working correctly. They each give off an open close signal for when something is connected. That is how it knows if it is in a drain program or dialyzer should be connected. If its not those buttons then it would most likely be a board. less likely, check the wires to make sure they didn't get pinched.
I had the exact same problem with it thinking the dialyzer connected when attached to the shunt. There is a switch below the nozzle you connect the hansen. It was pushed in and not seated correct. I replaced the shunt assembly and worked like a charm. Even if the buttons look fine, replace it. Those switches are what signals the hansens are connected to bypass.
You can check those switches with your meter and can hear and feel them working. When they break the actuators have no clicking sound or switching but if you can hear them clicking and they push in and out well they are likely good.