Honeywell T6575D1009 - Digital Fan Coil Thermostat; 4 pipe Auto Heat/Cool changeover, 3 speed fan with On-Auto Fan switch - Overview T6570 Series Digital ...
Honeywell T6575D1009 Thermostat. This item has been replaced by TB6575A1000, which is a functional replacement. See the suggested products field for a ...
don't know but honeywell technical support may know
https://www.honeywellstore.com/customer-service/contact-us.htm
check if it has a safety switch in the base as it may not be making contact with the surface the fan is sitting on.
It has a timer maybe cause ?
if not in usa then go to honeywell in your country and then look for help at bottom of web site.
There is a battery inside the thermostat. No one seems to know about this battery. If the battery is dead thermostat won't work. Pop thermostat apart, test battery and replace.battery. I am not 100% sure this is your problem, for your thermostat, but I have come across this problem before. Good Luck Friend.
