iT500 : Heating does not come on - Operating Modes (7.2.3) .
If your heating does not come on at all, the first thing to check is that the iT500 is in Auto Mode. ‘AUTO’ should be visible in the bottom right of the thermostats display. |
If Auto is not shown, or it is displaying ‘OFF’ then please follow the procedure below to select the correct Operating Mode :-
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Description : The Heating function on your thermostat has three different Operating Modes. These are Auto, Manual and Off. |
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Operating Modes : These are displayed in the bottom right-hand corner as below. |
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To De-Activate : Follow the procedure for Activating and simply choose the new required Operating Mode. |