The Humidifier BCM7932-CN is leaking, we cannot find the instruction manual. It has been used until the last three weeks and it was working well, it has been emptied and cleaned completely and did not work for a period of three weeks because we were gone. We filled it again and now it is leaking. It has been purchased around June or July of this year at RONA, in Kelowna, B.C. Does it mean the filters have to be change or else? Thank you for your help.