HHT-145 tower Honeywell Air Purifier

Question

I moved my hht-145 honeywell air purifier to clean the carpeting around it. I plugged it back in and it won't start. It's about 6 months old and has worked flawlessly. Is there a reset button.I lost my manual and can't find one on the WWW. I have asthma and need the filtering to sleep.thx..gordon Illinois, USA