Opentherm® Boiler Alerts (T4M Only); Standby Mode; Away Mode - Honeywell T4 User Manual

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OpenTherm® boiler alerts (T4M only)
If you have T4M Thermostat fitted to an OpenTherm® boiler, you can view alerts
received form the boiler about your heating system.
1. Press
to enter the main menu.
2. Press or to select the OpenTherm alerts menu
3. Press
or to cycle through the list of boiler alerts.
4. Press to return to the home screen.

Standby mode

Save energy by switching the heating off when not required - e.g.
during warmer summer months, or when doors and windows are
open for extended periods of time. If the temperature drops to 5°C
the heating will come on to prevent the heating pipes freezing.
1. Press
to switch the heating off - the display will show OFF .
2. Press a gain to switch the heating on - the display will show

Away mode

Save energy by switching the heating off for a set period of time while
you are away from home - and back on again in time for your return.
1. Press
to enter the away mode menu.
2. Press or to select the number of days you will be away and press
3. Press or to set the temperature while you are away and press
4. To cancel Away mode press
(with frost protect)
again from the home screen.
10
and press
.