My mother just purchased a home with a Goodman unit Mod.#GSH130301AB with a air handler #ARUF30301AB. It has a Mod.#ACONT401AN21MAA American Standard thermostat. Now the problem, she;s 87 yrs. old and don't see well. The thermostat display is so small she can't tell if its in A/C mode, heat, Off, or em. heat. Could you recommend a thermostat, something with a larger display or something that would work better for her? We don't need to have a programmable thermostat for her. The color code on the thermostat is: Red=R, Black=W2, White=W, Yellow=Y, Green=G, Orange=O, Blue=B. I would like to have something that I can wire back as per above without any issues. Thanks for any help.