The pump error indicates that there may a blockage or leak within the system. Firstly, we would recommend checking to ensure that the inlet and outlet of the instrument are not blocked or restricted. Next, please check the PTFE filter at the probe inlet to see whether this requires replacement.

Then, please inspect the sensor compartment, in which the mini PID sits, and inspect the blue sensor seal, electrode stack and lamp for signs of discolouration or residue. It may be necessary to carry out some simple user maintenance. Please refer to the Tiger user manual, and ensure that the instrument is reassembled securely.   

If problems persist, please contact your local authorised service centre for further assistance.