THERMEx ES 30 V Manual De Explotación página 20

џ
Replace the magnesium anode, clean the THE from the scale, if necessary, and remove the
sediment;
EN
џ
Perform the assembly, fill the EWH with water and switch on power supply.
When carrying out the EWH maintenance using the resources of a specialized organization, a
corresponding mark shall be made in the warranty certificate with the stamp of the organization
that carried out the maintenance. When the magnesium anode is replaced by the customer, a sales
receipt for the purchase of the magnesium anode shall be attached to this EWH manual.
Possible malfunctions and remedies
In case of malfunction in the product operation, it is necessary to disconnect it from the power supply
network and shut off the water supply.
Failure
The pressure of hot
water from the EWH
has decreased. Cold
water pressure has
not changed
Heating time has
increased
EWH works, but does
not heat water
Frequent triggering
of the thermal switch
The powered EWH
does not heat water.
There is no backlight
of control lamps.
20
Possible Reason
Clogging of the relief valve
inlet opening
THE is covered with scale
crust
The voltage in the power
supply network has decreased
The valve 24 (Fig.1) is not
closed or failed
The set temperature is close
to the temperature limit
The thermostat tube
is covered with scale
There is no voltage in the
power supply network
The residual current device
was triggered (if available)
Remedy
Remove the valve and rinse it
with water
Remove the THE and descale it
Contact the organization
responsible for the maintenance
of the power supply network
Close or replace the valve
24 (Fig.1)
Turn the thermostat knob toward
temperature decrease (–)
Remove the removable flange
from the EWH and carefully
clean the pipe from scale
Contact the organization
responsible for the maintenance
of the power supply network
Press the reset button of the
residual current device.
Check the voltage.