AC not cooling, looks like only the fan is turning on, heat works fine, any idea ?
I would say a couple of items.
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Make sure the cool.is set to AC and not ON
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Make sure your Freon is topped off on your AC unit. That bit me today.
E
On the air handler side, I only see wires from the C and Y terminals to the Wyze adapter. Before you connected the adapter, there should have been wires (probably white and red) connected to C and Y terminals that go out to your A/C unit.
Do you have pictures of the air handler unit before you connected the adapter? Are there by any chance a pair of red and white wires that are now unconnected close to that terminal?