Installation Instructions

Troubleshooting
Problem/Display Possible Cause Remedy
Batteries exhausted Replace the batteries.
Icons are flashing
Wireless communication error Check the wireless communication between
the Radiator Controller and the evohome
Controller (Step 3: Wireless Signal Test).
Repeat the binding procedure.
Check the power supply to the evohome
Controller and the Radiator Controller.
no sync
Wireless communication
interrupted
Check the wireless communication between the
Radiator Controller and the evohome Controller.
e1 sensor
Radiator Controller defective Replace the Radiator Controller.
e2 valve
Motor cannot be
moved
Improper installation of
Radiator Controller
Seized radiator valve
Check the Radiator Controller is properly
installed on the radiator valve and adaptor.
Check that the valve can be manually opened and
closed (see Emergency operation on page 17).
Remove the blockage or replace seized valve.
The radiator stays
hot
The radiator valve not closing
fully
Check the Radiator Controller is properly
installed on the radiator valve and adaptor.
Check that the valve can be manually opened and
closed (see Emergency operation on page 17).
Remove the blockage or replace seized valve.
Change the valve stroke parameter to
full-stroke mode (Parameter 6).
Motor does not
move
Locking mechanism on the
Radiator Controller not in the
locked position
Slide locking mechanism to the locked
position
The Radiator
Controller does not
accept scheduled
temperature
changes from the
evohome controller
Radiator Controller has been
manually set to OFF
off is displayed
Use the adjustment dial to set the room
temperature to the desired value. When the
next scheduled temperature change is
received from the evohome Controller the
Radiator Controller will resume following the
programmed schedule.
blocked
Local override of the Radiator
Controller has been disabled
by the evohome Controller
Enable local override for that zone in the
Installation Menu of the evohome Controller
18 FAQ/Troubleshooting