Operation instructions
4Operation instructions
Fig. 28
1On/Off switch
2 Reset button
3 Program “ 
“ button
4 Increasing temperature selector
5 Decreasing temperature selector
6 LCD display
4.1For your safety, read before oper- ating your water heater
Warning: The front cover of this appliance must be secured and properly sealed at all times once vent pipe and water connections are made. Failure to do so may result in freezing (not covered under warranty), improper fuel air mixture or error code faults.
Warning: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
A. This appliance is equipped with electronic ignition for lighting the main burners. When turning the heater on, follow these instructions exactly.
B. Before operating the unit, set the On/Off switch to the On ( I ) position.
WHAT TO DO IF YOU SMELL GAS
BDo not try to light any appliance.
BDo not touch any electric switch; do not use any phone in your building.
BImmediately call your gas supplier from a neighbors phone. Follow the gas supplier’s instructions.
BIf you cannot reach your gas supplier, call the fire department.
C. Use only your hand to turn the on/off control switch. Never use tools. Follow these instructions exactly. If control switch is jammed, close the gas supply and call Bosch Technical Support. Attempted forceful repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.
4.2Power
On
BTo start the appliance move the on/off switch to the "on" position (I).
LCD will display the default temperature factory setting 122°F (50°C).
Fig. 29
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