EN
15
corrosion protection is not desirable.
џ
Leakage - Very poor insulation is registered or water heater is malfunctioning in its electric installation and
supply. IN SUCH CASE THE USE OF UNIT IS PROHIBITED! Immediate intervention is required by a
qualified person from an authorized manufacturer service center.
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Sensor E1 - The temperature sensor is disconnected or turned off. It is possible in the same situation for this
message to be displayed the message Frost. Subsequent switch of the water heater is possible only after
intervention of a qualified person from an authorized manufacturer service center and removal of the cause
for the message.
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Frost - during electric power supply of the boiler negative temperature of the water in the tank is measured.
There is a chance that the water is frozen! In this case, the water heater will not switch on. It is FORBIDDEN
to make any attempts to switch on the water heater until a qualified person of an authorized manufacturer
service center does not review the tank and plumb it again! This message is displayed as well in some cases
of the temperature sensor disconnection or failure during unit normal operation.
