Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums General Petroliana Discussion any Vendo 39 owner,s i need info

Thanks in advance,i have a clean vendo 39 i bought 2 years ago,spent its whole life in a autoshop.Today i cleaned it and have it plugged in,its running and is cold and getting colder.My Q's is how long should and can it run for,its been running for 3 hours now.Is that normal?Will it hurt to leave it running overnight.thanks again, Mike