Description
Model
EAN code
Literature
Smart Thermostat wall powered
T6H700RW5001
5025121380027
http://hwllhome.co/eut-T6
Symptom (Fault message)
Possible Cause
Remedy
The Receiver box button LED is
green but the heat or hot water
does not switch on.
Heat or hot water wiring might be
incorrect or broken
Check the Receiver box wiring
The status LED on the Receiver
box is red (Communication
loss)
The Receiver box receives no
communication from the
thermostat: RF communication
might be too far or is blocked due to
Receiver box location.
Thermostat is no longer powered.
Try to move thermostat or Receiver box closer or
re-locate.
Check the power to the thermostat
Thermostat alert messages
WIFI RADIO ERROR
The Wi-Fi radio of thermostat is
faulty.
Replace thermostat
INTERNAL MEMORY ERROR
The internal memory of thermostat
is faulty.
Replace thermostat
INDOOR TEMPERATURE SENSOR
ERROR
(wired only) The external
temperature sensor is not
connected or the wiring is faulty.
Check external sensor wiring and sensor
NO COMMUNICATION
RECEIVER BOX
The thermostat receives no
communication from the
thermostat: RF signal is blocked due
to the location of the thermostat.
Receiver box is no longer powered.
RF communication might be too far or is
blocked due to the location of the Thermostat or
Receiver box.
Check the power to the Receiver box
RF SIGNAL OFRECEIVER
BOX LOW
There is a weak radio signal from the
Receiver box
Try to move thermostat or Receiver box closer or
re-locate.
NO RECEIVER BOX
The thermostat is not bound with
the Receiver box
Bind or re-bind the Receiver box
NO INTERNET
Thermostat has no longer Internet
connection.
End user needs to check their Internet
connection via router.
NO WIFI SIGNAL
Thermostat has no longer a Wi-Fi
connection.
End user needs to check their Wi-Fi network of
router.
REGISTER ONLINE
Thermostat is connected to Internet
but not yet registered to an account.
End user needs to download the App, create an
account and register the thermostat.
WIFI NOT CONFIGURED
Thermostat is not connected to
Wi-Fi network.
End user needs to download the App, create an
account, connect and register the thermostat.
BOILER FAILURE FAULT xx
The OpenTherm boiler reported a
failure number XX.
Check the boiler
BOILER LOW WATER PRESSURE
The boiler reported low water
pressure.
Fill up the hydronic system with water.
