The batteries ran down on my Maple Chase thermostat 09600 and I had a "lo bat" signal that was steady. I have changed the batteries several times, but I still get the "lo bat" signal and I cannot get my air conditioning to work. The replacement batteries are new and I know they work. I hope you can help me fix this problem. Thank you.

Try this to see if it's what you need (It's pdf so allow it to load):

http://www.icca.invensys.com/manuals/robertshaw/110-653B.pdf

I know it's getting cold here, so I hope this helps