5 Messages
5.1
Error messages
If an error is present, a fault code and a fault indication will appear on
the display.
Error codes Fault
indication
Probable causes
Solution
f203
c
Faulty connection to boiler.
Check the boiler’s connection to the controller.
f214
c
Incorrect room temperature
reading.
Room temperature reading is incorrect. The temperature sensor
may be defective if the room temperature is between -5℃ and
65℃.
Contact your installer.
f215
c
Controller failure.
Contact your installer
f217
c
+
e
Water pressure too low.
Top up the water in the central heating system. See the
installation and service manual for the boiler.
n;
5p
c
Your boiler may not support
the OpenTherm
SmartPower.
OpenTherm SmartPower is required for the backlight.
In boilers without OpenTherm SmartPower, the Opentherm
Modulating room thermostat is functional but without backlight.
To clear the message, press the button.
R000125-A
Opentherm Modulating room thermostat
5. Messages
31032014 - 7616664-01
10
Summary of Contents for OpenTherm
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