Zehnder Rittling Fare LCD, Manual

Page: 22 / 79

EN
Maintenance and troubleshooting tips 43
EN
42
40005957 40005957
Error
message
Consequence Diagnosis Steps to take
E1
The radiator
stops heating.
Communication fault with
the radiator regulation: the
display board no longer
communicates with the
regulation board.
Contact your
dealer.
E2
The radiator
stops heating.
Sensor fault: the regulation
board no longer receives
temperature measurement
information.
Contact your
dealer.
E3
The radiator
switches to
COMFORT
mode.
PLC connection fault: the
radiator no longer receives
information from the PLC
base unit.
Re-connect the
radiator to the
PLC base unit or
contact your
dealer.
IN ThE EvENT OF A POWEr FAIlUrE:
When reactivated, the radiator will remember the last mode and temperature
level selected before it was turned off. In the event of a prolonged power failure, the
time may need to be reset (see chapter 4.1).
The equivalent table below summarises the 3 error codes possible and the steps
to take:
5. maintenance and troubleshooting tips
5.1 routine maintenance operations
High-quality materials and surface treatment protect your radiator against
corrosion and impacts.
To maximise the service life of your appliance, we recommend that you do not
use abrasive or corrosive materials to clean it. Use warm soapy water and a dry cloth
instead.
5.2 Troubleshooting
If your appliance stops working, check that:
- your radiator is properly connected to an appropriate power supply;
- the radiator is not set to NO HEAT mode;
- the setpoint temperature is higher than the current room temperature and that
this causes the radiator to heat;
- the “open window detection” function is not active.
Your radiator can notify you by means of error messages
shown on the display.