Thermo Scientific thermoscientific Vanquish Pumps C, Operating Manual

Page: 205 / 296

8 • Troubleshooting
Pumps C, Pumps F ( VC-Pxx, VF-Pxx)
Operating Manual Page 205
Message and Code Description and Remedial Action
Code 4125 Degasser malfunction The vacuum level monitoring function detected insufficient
degasser vacuum.
Turn the pump off and on again. Check the degasser vacuum in
the Chromeleon software. After about 1 minute, the setting
should change from
NotOk to Ok . If the degasser vacuum is still
insufficient, the degasser may be leaky. Locate the
DegasserPressure property in the Command window, write down
the pressure reading, which can provide helpful information to
identify the source for the problem, and contact Technical
Support.
Code 4127 The pump drive is still in
undock position. Please execute a dock
command. The message alerts you during pump maintenance:
This message alerts you during pump maintenance (for example,
when replacing the piston seals or pistons) when you try to start
the pump while the pistons are not yet in the correct position for
normal operation. To return the pistons into the correct position,
perform the following sequence of steps:
1. Open the purge valve.
2. Dock the pistons.
3. Close the purge valve.
The message alerts you during internal pump maintenance:
If the message appears during the internal maintenance
procedure, perform an additional purge cycle.
Code 4130 Pressure buildup during
maintenance operation. A pressure of more than 0.5 MPa built up during piston
maintenance or piston seal maintenance. To reduce the pressure,
perform the following sequence of steps:
1. Open the purge valve.
2. Dock or undock the pistons, depending on when the message
appeared.
3. Close the purge valve.
If the message appears during the internal maintenance
procedure, perform an additional purge cycle.
Code 4148 Can’t perform this command
while the flow is on. You tried to run a self-test while the flow rate was not yet down
to zero. Apply a flow of 0 and repeat the command.
Code 4152 Pressure sensor malfunction.
Check the cable connection and retry. Verify that the cable for the pressure sensor is properly plugged
into the connection port and retry. If the message appears again,
follow these steps:
1. Open the purge valve.
2. Perform a self-test.
3. Close the purge valve.
4. Restart the flow.
5. If this message appears again or if another message relating to
the pressure or a pressure sensor appears, contact Technical
Support.