Yesterday I came back from work and check out girls too find out that the lights are off and they need to be on (they got+3h of dark ) so I push a timer in to the plug a little and it worked! Today I met same problem again at the same time,so I smashed that crap..thanks to God I have another.. I'm having problem with temps too, first temp was pretty high and I noticed that air flow is weak, hello screwdriver and banging on the carbon filter, white dust filled my room , i almost chocked, It's fckin lime stone again I guess. Now my temps wont go above 25c..So i put Prima klima extractor at 15% of power.. I think I will have to buy RO / destiled water coz my humidifier gets chocked too, by limestone on that main part that causes myst...