The University of Southampton

What to do if there’s a problem

Don’t Panic!


Equipment can go wrong just like with any other electrical device. The key to good troubleshooting is to keep calm and try to systematically check each part of the device to locate the problem. To recap from the earlier presentations the 5 main parts to the processor are the batteries, lead, coil, microphone and the speech processor itself. Use the chart above to check through each part.

Depending on the processor used there is usually a light system to indicate an error is occurring and a part of the processor is faulty. The meaning of the lights can be found on the take home sheets that the implant service issues at each appointment. This will also show what is stored in each of the patients programmes. Alternatively you can find further information on the manufacturer instruction manuals and websites.

The manufacturer websites are very useful for troubleshooting individual devices. There are also some useful video clips on the Auditory Implant Service website (following the links below) and You Tube. As technology is always changing please also look out for our device troubleshooting half day courses, where you can get hands-on familiarisation with each of the devices offered by USAIS.

Cochlear Troubleshooting

Advanced Bionics Troubleshooting (scroll down for product guides)

MED-EL Troubleshooting


Troubleshooting videos

Cochlear CICochlear BahaAdvanced BionicsMED-EL


Key concepts