8/10
Problem Possible cause How to clear it To be done by
Err3
Parameters changed
cannot be saved
Power failure to wireless con-
trol device
Restore power supply Electrician
Defective internal fuse › Check electrical connections Electrician
Problem Possible cause How to clear it To be done by
Err4
IR sensor defective
Insucient battery power Replace the batteries User
IR sensor broken
Replace wireless room thermo-
stats with IR sensors
Specialist
Problem Possible cause How to clear it To be done by
Roth App
lost connection
Inability to connect to
control device via app.
Restart control device User
Always make sure you have the
latest soware update.
See www.roth-uk.com
for more information.
Parameter Description
P-24
Reset parameter to factory setting.
The parameters are saved in the wireless control device and also in the wireless
room thermostat. Which parameters can be reset under which conditions are
dened in section 15.3.
NOTE
If there is no pairing of a wireless room thermostat to a wireless control device,
parameters must be reset to factory settings in two steps. First, select options “1”
and then options “3” for parameter P-24.
Options
› 0: Inactive, no reset will be executed.
› 1: Reset wireless control device to factory setting. The pairing of the wireless room thermostats to
the wireless control device will not be deleted.
› 2: Reset wireless control device to factory setting. The pairing of the wireless room thermostats, wireless
control device and accessories will be deleted.
› 3: Reset wireless room thermostat to factory setting. The pairing of the wireless room thermostat or
temperature sensor (sensor mode) will not be deleted.
› 4: Reset wireless room thermostat to factory setting. The pairing of the wireless room thermostat or
temperature sensor (sensor mode) will be deleted.
Operation
› Press the sensor button . The display shows 0.
› Press the sensor button or to select an option.
› Press the sensor button . The display shows no.
› Press the sensor button or to toggle between no and yes.
› Select one of the following options:
– Press the sensor button to save the changed setting. The display shows the next parameter P-21.
– Press the sensor button to cancel the procedure. The display shows the selected parameter.