EWC Controls Forum

Yes, sgwhite15, I did get the "CHECK SYSTEM" message with my old CTK01 randomly as well, along with the touch screen problem. I remembered I replaced the 2 new AA batteries for the CTK01, the message disappeared and the A/C ran again. But, then the CHECK SYSTEM message came back after that...

Thank you, Steven W., for your input.   And, you are absolutely correct about the CTK04, it works like a champ when I replace my old CTK01 with a CTK04.   It's "compatible" down to the holes for the screws holding the base plate, I mean no need to drill any new holes, even though the two u...

Hello everyone, I am a new member of this forum. I have been using the thermostat CTK01 for my AC/Heat Amana system for about ten years, but now my CTK01 has a touchscreen problem that I need to replace. Can I acquire a CTK04AE, currently on the market, for a direct one-to-one replacement? I do not ...