Troubleshoot Legacy Models

For Older and/or Discontinued Bosch Tankless Models

Bosch still offers technical support for older or discontinued models. We recommend that you first check the Troubleshooting section of your installation manual before submitting a Tech Support form.

Older and/or discontinued model installation manuals are available 24 hours a day, 7 days a week, 365 days a year on our website. Please click on the link to the right to find the right manual for your model.