its my third renesa fan from atemberg first one and second one i bought one year backboth are still working goodthird one i bought last month i have noticed some problems from beginningrpm is little lower than old one just after one month its stoped working and got some abnormal sound from motori think new renasa models have some quality degradation happened any way i reported to atemberg and immediately they have replaced the motor and its well nowi give 5 star this time