Honeywell Thermostat - HELP! PLEASE! I'm freeeezzzzzing!

[sbernelli]

I have a Honeywell Chronotherm 3 thermostat (T8602) that is giving me trouble. I use to override the WAKE, SLEEP, etc. settings and use the thermostat manually by pressing the up or down arrows to get to the temp I wanted and then press the hold button. Worked great. Can't do that anymore. When I set it to the temp I want, the furnace will come on for a few minutes and then stop. Then the thermostat makes a clicking noise for about 30 seconds. The batteries are fresh. The thermostat is about 20 years old. Any help would be appreciated. Thanks.

[RBM]

You may need a new thermostat!!! For temporary heat, assuming there is not a problem with the furnace: Remove the thermostat from the wall leaving the mounting plate. There should be wires on terminals R and W, or possibly RH and W. Remove those two wires and twist them together. The heat should come on and remain on as long as they're together

[Edwin Pawlowski]

Probably broke after 20 years. Since you don't use all the features, buy a cheap manual one and be warm.

[trader4]

Try removing the batteris for half an hour or follow the full reset procedure in the manual, or see if there is a reset button you can push with a pen, etc. If that doesn't work, then buy a new one.