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Operation instructions
4 Operation instructions
Fig. 28
1 On/Off switch
2 Reset button
3 Program “ “ button
4 Increasing temperature selector
5 Decreasing temperature selector
6 LCD display
4.1 For your safety, read before oper-
ating your water heater
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
B Do not try to light any appliance.
B Do not touch any electric switch; do not use any
phone in your building.
B Immediately call your gas supplier from a neighbors
phone. Follow the gas supplier’s instructions.
B If 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.
4.2 Power
On
B To 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
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.