If cleaning of the timer is required, remove from mains power and wipe timer with a dry cloth. DO NOT IMMERSE TIMER IN WATER OR ANY OTHER LIQUID. Heaters and similar appliances should never be left unattended during operation.The manufacturer recommends such appliances not be connected to timers. Extreme caution and supervision is necessary when this appliance is used by or near children invalids or animals. Young children should be supervised to ensure they do not play with the appliance.