7.4 Frequently asked questionsThe definitions apply to the ECL Comfort 210 / 296 / 310 series.Consequently, you might come across expressions that are notmentioned in your guide.Circulation pump (heating) does not stop as expectedIt is in operation at frost protection (outdoor temperaturelower than "P frost T" value) and at heat demand (desired flowtemperature higher than "P heat T" value)The time shown in the display is one hour off?See ‘Time and Date’.The time shown in the display is not correct?The internal clock may have been reset, if there has been a powerbreak for more than 72 hours.Go to the 'Common controller settings' and 'Time & Date' to setthe correct time.The ECL Application Key is lost?Switch the power off and on again to see the ECL controllertype, version code (e.g. 1.52), code no. and application (e.g.A266.1) or go to 'Common controller settings' >'Key functions' >'Application'. The system type (e.g. TYPE A266.1) and the systemdiagram is displayed.Order a replacement from your Danfoss representative (e.g. ECLApplication Key A266).Insert the new ECL Application Key and copy your personalsettings from the controller to the new ECL Application Key, ifrequired.The room temperature is too low?Make sure that the radiator thermostat does not limit the roomtemperature.If you still cannot obtain the desired room temperature byadjusting the radiator thermostats, the flow temperature is toolow. Increase the desired room temperature (display with desiredroom temperature). If this does not help, adjust the ‘Heat curve’(‘Flow temp.’).The room temperature is too high during saving periods?Make sure that the min. flow temperature limitation ('Temp. min.')is not too high.The temperature is unstable?Check that the flow temperature sensor is correctly connectedand in the right place. Adjust the control parameters ('Controlpar.').If the controller has a room temperature signal, see 'Room limit'.The controller does not operate and the control valve isclosed?Check that the flow temperature sensor is measuring the correctvalue, see 'Daily use' or 'Input overview'.Check the influence from other measured temperatures.How to make an extra comfort period in the schedule?You can set an additional comfort period by adding new ‘Start’and ‘Stop’ times in ‘Schedule’.How to remove a comfort period in the schedule?You can remove a comfort period by setting start and stop timesto the same value.How to restore your personal settings?Please read the chapter concerning ‘Inserting the ECL ApplicationKey’.VI.LG.H4.02 © Danfoss | 2017.05 | 147Operating Guide ECL Comfort 210/296/310, application A230