Vaillant ecoCRAFT exclusive Operating Instructions Manual

Contents

Appendix20 Operating instructions ecoCRAFT exclusive 0020149575_01AppendixA TroubleshootingProblem Possible cause SolutionNo hot water,heating stays cold;product does notstartBuilding gas isolator cock closed Open building gas isolator cockBuilding power supply switched off Switch on building power supplyMain switch on the product isswitched offSwitch on the main switch on theproductThe heating flow temperature on thecontrol is set too low or in the "Heat-ing off" position and/or the domestichot water temperature is set too lowSet the heating flow temperatureto the desired temperature and/orset the hot water temperature tothe desired temperatureFilling pressure of the heating install-ation insufficientAdd more water to the heatinginstallationAir in the heating installation Purging the radiatorsIf the problem occurs again: In-form the competent personIgnition malfunction Press the reset buttonIf the problem occurs again: In-form the competent personHot water handlingmode without anyproblems; heatingdoes not startNo heat requirement via the control-lerCheck the timer programme onthe controller and correct if neces-saryCheck the room temperature and,if required, correct the target roomtemperature ("Controller operatinginstructions")The heating flow temperature onthe control is set too low or is in the"Heating off" positionSet the heating flow temperatureto the required temperatureAir in the heating installation Purging the radiatorsIf the problem occurs again: In-form the competent personNo hot water, heat-ing mode function-ing correctlyThe hot water temperature on thecontrol is set too low or in the "Hotwater off" positionSet the hot water temperature tothe required temperatureTraces of waterunder or next to theproductCondensate drain pipework blocked Check and, if required, clean thecondensate drain pipeworkLeak in the system or the product Close the cold water supply tothe product, inform a competentperson