My honeywell thermostat was working yesterday then went blank today and the airconditioner has shut off. So far I have tried, 1. Checking the fuse and it's fine. Nothing wrong with it. 2. Checking the wiring in the thermastat, everything is still conected. 3. Water pan under the air conditioner is empty. 4. Tried to jump the G, R, and Y wires and nothing. Any other suggestions or thoughts? The airconditioning unit is made by Carrier although I am not sure what model.