Where can I find part #AP4052896 control panel if it is discontinued? Who would have one available?
With the control panel being discontinued, this means that the manufacturer no longer makes the part or one that is suitable for it.
What do the letters that show up in the control pearl window i.e. A or C mean?
Answer Hello Johnson. The A in the display is reminding you to clean the filters 49001046A in the unit. The C in the unit id reminding you to change the carbon filters 49001168A in the unit. To reset the unit, you will press and hold the + key, until the C disappears. You will press and hold the - until the A disappears. Hope this helps.