User manual BOSCH GWS 10-125

[. . . ] In the Commonwealth of Massachusetts this product must be installed by a licensed plumber or gas fitter. Upon completion of the installation, these instructions should be handed to the user of the appliance for future reference. What to do if you smell gas · Close gas valve. · Do not try to light any appliance. [. . . ] or to select temperature to be B When a hot water tap is opened, main burner ignites and LCD displays the symbol . B Hold "Program" button for 3 seconds to save temperature. When LCD stops blinking, temperature is saved in memory. 49 B LCD blinks until selected temperature is reached. Using "Program" function In order to select memorized temperature B Press "Program" key. LCD shows pre-memorized temperature, which is now the hot water selected temperature. 5. 7 Reset button If the LCD shows the error symbol do not shut off power or unplug the heater. See the error code on LCD and consult "Troubleshooting" section. 5. 9 Locked condition This condition is only valid for appliances with one or more remote controls installed. Fig. 50 After following instructions "Troubleshooting" section. 53 Locked condition Whenever LCD shows the temperature setting cannot be adjusted because the appliance is in use by a user which already selected a different temperature. Appliance will be automatically unlocked after closing the hot water tap. B press reset firmly in order to return heater to normal operation. 28 6 720 608 158 Maintenance and service 6 Maintenance and service Warning: Always turn off the electrical power supply, turn off the manual gas shut off valve and turn off the water shut off valves whenever servicing. Caution: B Check and clean the complete water heating system once a year. B Carry out a maintenance overhaul if necessary. Yellow burner flames are an indication of improper combustion. Refer to Section 3. 10 & 3. 11 of this manual to ensure that exhaust system and combustion air supply meets manufacturer's specifications. 6. 2 Winterizing for seasonal use Installation instructions state that the water heater must not be installed in a location where it may be exposed to freezing temperatures. If the heater must be left in a space which is likely to experience freezing temperatures, all water must be drained from the heater. If precautions are not taken, resulting damage will not be covered under the warranty. NOTE: Use of agents such as anti-freeze is not permitted as they may cause damage to the water heater's internal components. Press ON/OFF switch on the water heater to turn OFF the heater and unplug power supply cord. Shut off the water supply to the water heater using installer supplied shutoff valve. Open hot water taps to drain the plumbing system. If water continues to flow after 5 minutes, a plumbing crossover is present and must be corrected before proceeding. 6 720 608 158 29 Maintenance and service 5. Open service valves (if available) or disconnect inlet and outlet water pipes from the water heater. Place a small bucket underneath the water heater to catch residual water remaining inside the water heater. [. . . ] BBT North America (BBTNA) will furnish a replacement heat exchanger and will furnish a replacement of any other part which fails in normal use and service within the applicable periods specified below, in accordance with the terms of this warranty. The BBTNA replacement will be warranted for the unexpired portion of the original warranty. This warranty will be valid only for water heaters in possession of the original purchaser as recorded on the warranty card. The Heat Exchanger If the heat exchanger fails within Fifteen (15) years after the original installation and operation, BBTNA will furnish a replacement heat exchanger. [. . . ]