5-2 Day Programmable Thermostat with Digital Backlit Display

yes,zone heat with 3 thermostat

Yes, there is a hold function. See picture of device

When you push any of the buttons the back light comes on stays on approximately 30 seconds goes off when you press run, I believe.

Yes it can

Can this be used on s Goodman gas what is the wiring diagram for the goodmsn

Try changing the batteries but the unit could be bad. it has a one year warranty

Yes and No Yes, this thermostat is programable. However, selecting between heat and cool is manual. In the summer; switch the thermostat to cool. Then program it to make the house 55 degrees for 2 hours in the am. The rest of the time tell it to make it 90 degrees. Since the thermostat is in cool it can not heat the house... it will just not turn the air on until it is 91 degrees in your home. In the winter; switch the thermostat to heat. Then program it to make the house 90 degrees for 2 hours in the am and 55 degrees the rest of the time. You would have to go there when the seasons change to move the switch from heat to cool. Other higher prices thermostats can do what you want without you having to move the switch

how do you program this thmostat

Check capacitor or fuse

I was having a similar issue and have always purchased Honeywell products in the past. As per Honeywell Customer Care recommendations earlier on this thread, I contacted the Honeywell Consumer Technical Support Line, waited on hold for 15 min only to be told that I should return my Honeywell purchase and try a different brand as this was my only option. The man never even asked what type of thermostat I purchased, however he insisted that, "there is no such wall plate or cover for this particular thermostat" even though he never asked which particular thermostat I had purchased! I am very disappointed.