I’ve had my Bose Solo TV Speaker for at least 7 years now . Never had issues until now . On the remote if I hit + to go louder it will go so loud and I can’t stop it . When I hit the - it goes so low that I can’t hear anything . Not sure what’s going on with either the remote or the speaker . Any ideas?
That's quite unusual. To confirm, the volume buttons seem to be out of control when you press them and will not stop unless you force the system off? Have you tried disconnecting the Solo TV speaker from power for two minutes, to perform a reset?
Also, have you tried to replace the batteries in the remote, to see if this has any improvement?
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