REMEHA iSense Guide D'utilisation page 77

Problem The boiler starts heating the home or the tap water at night even though
the controller is set low.
Solution
- Weather-compensated control (OTC) means that the boiler is controlled
led by the outside temperature. This can be prevented by adjusting the
Heat limit night or selecting another control strategy. See the installation
and service manual.
- The boiler can start pre-heating before the following set point. Adjust the
Max. pre-heating time setting (see the installation and service manual).
The home may well not be up to temperature on time as a result.
- The tap water is only heated when the room temperature set is higher
than the night temperature. See the installation and service manual for
details of how to change the night temperature.
Problem
The temperature measurement differs from that which I am used to.
Solution Correct the temperature measurement via the Calibration setting (see the
installation and service manual).
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