Honeywell Programmable Thermostat Heater "rth7000" Questions

RTH7000 thermostat won't maintain the heat I've My RTH7000 thermostat won't maintain the heat I've chosen to "Permanent Hold" ... I set it to hold heat at 20 (celcius) and the room temperature usually

Installing Honeywell RTH7000 - I have too many wires! I am replacing a Honeywell dial thermostat from 1995 on a gas fired forced air system with an airconditioning unit attached, with a Honeywell ...

...of more days. Is it possible that something in the thermostat is draining the batteries? I have an RTH7000 Series Programmable Thermostat If you have a spare wire (unused) in the thermostat wire ...