universalblue UBT2500-20 Instruction Manual page 33

the indicator doesn't light up, then the thermal switch was
switched off or not switched on. To reset the water heater to
the operating condition, it is necessary to:
1. De-energize the water heater, remove the plate of the side/lower
cover.
2. Press the button, located at the center of the thermal switch, see
Fig.6;
3. If the button is not pressed and there is no clicking, then you
should wait until the thermal switch cools down to the initial
temperature.
CONTROL / REPLACEMENT OF ANODE
This function is very important for protecting the tank against
corrosion caused by stray currents or the aggressiveness of the
water. Wear is proportional to the protection work carried out and
the quality of the water inside. Make sure to check its efficiency at
least every two years or in any case according to the quality of the
water. Protection efficiency is linked to its integrity. When checking,
also check wear, replace if excessively worn or insufficient to
guarantee protection until the next foreseen control.
IMPORTANT: Remember that damage caused by excessive
anode wear (insufficient tank protection) is not due to
manufacturing defects and is therefore not covered by the
warranty.
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