21
DE
GB
5. TROUBLE SHOOTING
Symptom: No heat, indicator light off
Cause
Remedy
Electric supply is off
Turn on the main circuit breaker.
No or low water flow
Ensure that the minimum water pressure (0,05Mpa /
0,5bar) to switch on the device is met. Also check that
the inlet filter screen is clear from any debris. This is
located in the inlet.
Water connections
are reversed
Cold water inlet = blue;
Hot water outlet = red.
Symptom: No heat or low temperature, with indicator
light on
Cause
Remedy
Water flow too high
Reduce the water flow.
Incorrect power supply
Make sure that the device is connected to the voltage
supply specified on the rating label on the front cover
of the device and no other.
