AC questions

I have similar AC questions. I actually don’t see a Y wire but AC is working fine with current original Honeywell set up. Will I still be able to install my Wyze tmst? Current set up is for both heat and ac.

Here is a pic of original tmst set up. Just can’t understand how ac is working without a Y plugged in

Thank you so much in advance!

Can you create a new topic? It’s annoying to reply to a thread that has been marked solved.

I’d need to see the wiring in the air conditioner to be certain, but most likely Y is jumped to G

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Moved to new topic. :+1:


Sorry about that. Thanks to the mod for moving for me.

Yes I’ll try and take a picture of the other end if I’m able to get to it. If it’s jumped with G do I need to split and run a new wire for me to use the Wyze tmst?


wither you need to run a new wire depends on where that wire that is marked NC on your old thermostat goes.