0020323586_00 Operating instructions
33
Appendix
A
Eliminating faults
Fault
Possible cause
Troubleshooting
Despite the water tap at the draw-off
point being fully opened, the product
does not start.
The power supply to the product has
been interrupted.
Check the circuit breaker (fuse) and,
if required, switch it on.
The flow rate is too low. The flow
regulator in the tap fitting is calcified
or dirty.
Clean and/or descale the flow regu-
lator or, if required, replace it.
The water inlet is interrupted.
Purge the product and the cold water
supply pipe.
The desired temperature is not
reached
The scald protection is activated
Contact a competent person
The product does not heat the water;
the cold water inlet temperature is
above 55 °C
Reduce the cold water inlet temper-
ature
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