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Also ajcerc, there is a switch on the back of the unit that allows either 5 day or 5 + 2 day programs. You need the latter.

Hi ajcerc, There are some quick "plain" instructions on the flap covering the buttons. When you first press "set" the Mon-Fri text flashes on the screen. Press select and it will change to SAT-SUN. Then program as normal for the two weekend days. Remember, this thermostat does not have an...

Hi, does anyone know why my RT500RF won't turn the boiler OFF until it is within 15ft of the sender? The boiler is in the attached garage and I thought it wasn't picking the signal up through the house wall, so I extended the sender wiring to bring it inside the house, so that the thermo would...