Could be a couple of things. First check your flow, degas and loading pressures. Check your CFS numbers ( debug screen 10), the switch may not be working. One of your balance chamber valves may not be working correctly. Watch debug screen 20 and see if cycle 1 or 2 on the balance chamber valves is when you get your flow messages. You may also have a torn BC diaphragm. Run a BC volume test. Those are the areas I check.