Bosch 1000P/1600P/1600H Service Bulletins

Bosch has released a series of Technical Service Bulletins for the Bosch 1000P, Bosch 1600P and Bosch 1600H tankless water heaters. These Technical Service Bulletins can be extremely helpful for installers and home owners who are installing the Bosch 1000P, Bosch 1600P and Bosch 1600H gas tankless water heaters.

Some of these Service Bulletins apply only to the Bosch AquaStar 1600H. Many, however, also apply to the Bosch 260PN, 425PN and 425HN tankless water heaters. See the Models listed in the header of each Service Bulletin to determine if the bulletin applies to your specific Bosch water heater.

Bosch 1000P, Bosch 1600P and Bosch 1600H Technical Service Bulletins:

• CT-01 Temperature fluctuation troubleshooting
• CT-03 Checking the draft
• CT-04 Checking gas pressure
• CT-05 Negative air freeze prevention
• CT-07 Lowering temperature
• CT-08 Descaling the heat exchanger
• CT-09 No spark with hot water flow (1600H Only)
• CT-10 Spark, no pilot flame (1600H Only)
• CT-11 Winterizing for seasonal use
• CT-12 Cleaning inlet filter
• CT-13 Removing and cleaning burners
• CT-14 Unlocking regulator
• CT-21 Replacing heat exchanger
• CT-22 Cleaning and replacing pilot assembly
• CT-23 Water valve rebuild
• CT-24 Replacing eco/temperature limiter
• CT-26 Replacing electro valves (1600H Only)
• CT-27 Replacing control box (1600H Only)
• CT-29 Cleaning and Replacing hydro generator (1600H Only)

Steve