Follow these steps

Each day, after you turn the processor on, check the:

Microphone: switch the processor to N and set the Sensitivity to the recommended level. Speak into the microphone and check that the M light flickers in response to sound.

Sensitivity level: adjust the sensitivity level if the sound is too loud or soft, or turn the dial from N to S

If you cannot hear any sound from your processor, take the following steps:

1. If the M light is off or flashing, change the batteries.

2. Check the battery is correctly inserted. Rechargeable batteries may need to be replaced if the battery charger is failing to recharge them.

3. If it continues to flash clean the battery contacts with the cleaning brush. Contact your clinician, implant centre or nearest Cochlear office.

4. If the M light does not flicker in response to sound, replace the headset cable.

5. With the Spectra turned on, slide the transmitting coil with the cables still attached to the Spectra up the back cover of the processor toward the C light.

6. The C light should be constantly illuminated. If the C light does not light up, replace either the transmitting coil or cable. Alternatively, use the Signal Check to check the transmitting coil.

7. If the Signal Check lights up the coil is functioning. If it does not light up, replace the transmitting coil, transmitting cable or headset cable.

8. Try moving away from any electronic device that may be causing interference.

After each step, check if there is any sound. If there is still no sound, contact your clinician, cochlear implant center or your nearest Cochlear office.