Unlock thermastat of honeywell - Heating & Cooling

Actually the 24 hour time makes it easier to correctly set the thermostat for when you want it to change setting.

Did you check the batteries too? And do you have the temperature settings right for each program?

Try using the calendar and not the cakender set up. Just kidding make sure your press save after you change your settings. Also if that doesn't help doubt it will much try contacting Honeywell either by phone or web site they are very good at assisting contractors or homeowners with questions about a honeywell product.

sounds like you hooked it up wrong use t stat as a switch and it should be fine

you have to remove front cover. Most times there are little snaps on the sides of cover to undo. Get a smallish screw driver and pry the cover off very carefully. any more questions just get back to me ken

HONEYWELL WEBSITE:
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions

the thermostat could be bad. It may have gone bad on its own or due to a short in the supply wiring. Sometimes mice will chew on the wiring in the wall that leads to the thermostat. But I wouls change the thermostat. They do go bad. Make sure you turn the inside unit off first in case you accidently touch wires together. This will blow the transformer inside the unit if the fuse doesn't blow first. I even scene thermostats with fuses inside. So you may want to take the thermostat apart and check for inside fuse also.

first.... did they work in the past?? if so... you may have a defective thermastat. if not, usually it is a incorrect wiring problem. wiring in two baseboard heaters to one thermastat can be tricky if you do not know what you are doing. baseboard heaters by design seldom go bad.... if wired correctly the problem could be a defective thermastat or safety limit switch.

have you programed the tstat for your system? look at your installers book.

Here are the links to the honeywell site and the pdf of the manual.
http://customer.honeywell.com/techlit/pdf/69-0000s/69-1800.pdf

http://homecomfort.honeywell.com/EN/literature_program.html