I upgraded my thermostats last year. Great easy upgrade. Keeps temperature steady. A/C and heat come on within a few degrees of set point and turn off at the right temp. No more wild swings. I got the digital version of the Coleman Mach. A little more expensive, but imho worth it. All the wire colors match, no need to add a micro switch for the fan, even the screw holes in the wall matched up. 5 minutes tops.
I went to the Coleman Mach website, found my thermostat in the catalog, then found the matching digital version, googled the digital model number and ordered them. I think I got mine off amazon.
http://www.airxcel.com/docs/default-...g.pdf?sfvrsn=4
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