Question about Bosch 125BO NG AquaStar Outdoor Natural Gas Tankless Water Heater
Before calling service technician, open following link for Bosch troubleshooting resources
The model and serial number are usually located on label on side or front of unit.
Link above might have your manual where you can read advisories and required maintenance.
If you are not getting error code, then problem could be plumbing related, but this is a shot in the dark, and one of many places to start troubleshooting.
Error codes are starting points, and a problem on one tankless can have entirely different cause and solution than same error code on another tankless.
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Posted on May 26, 2011
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Posted on Jan 02, 2017
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