VOX electronics WHF 10021, User Manual

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16
Troubleshooting
PROBLEM REASON SOLUTION
Water heater is not opera-
ting.
Switch is off. Turn on the switch.
Power cut.
Wait for the power to be
back.
Building's main fuse is
blown.
Fix the fuse.
Water heater is not heating
the water.
Water heater is not opera-
ting correctly.
Call the authorised service.
Water heater is heating the
water late.
Voltage may be low.
Use an appropriate regu-
lator.
Limescale may be formed
on the resistance.
Call the authorised service.
Noisy operation.
Limescale may be formed
on the resistance.
Call the authorised service.
Limescale or sand can be
present
in the safety valve.
Call the authorised service.
System pressure can be
distributed irregularly.
Install a pressure regulator.
Water heater heats water
excessively (water steam
comes out).
There might be too much
limescale in the product.
Call the authorised service.
Water drips from the safety
valve.
This is normal.
Connect the provided
hose to the water drai-
nage.
Before calling our technical service in case of a failure, ensure that the failure is not
related to a temporary power cut or water cut.
When you notice an abnormal situation in your appliance, you may attempt to troub-
leshoot according to the following instructions. If your appliance does not still operate
properly, please contact the Call Center. You may access the authorised services list
and contact information from the web site.