Nest Thermostat emitting heat when ac is on

[AgUsr]

I have a nest thermostat 3rd gen. It emits heat when AC is on. When I put heat it emits heat and works fine.  

old Thermostat  wiring &  Nest Thermostat 3rd gen -   https://imgur.com/a/dws2M8w 

[Patrick_Caezza]

@AgUsr 

Any idea if you have a heat pump?

I can't read what the terminal the orange wires were connected to on the original thermostat.

[AgUsr]

@Patrick_Caezza yes. I have heat pump.

Should I try moving w2 to OB?

[Patrick_Caezza]

@AgUsr 

If you can access the furnace/air handler, look there and see where the orange wire is connected.

If it is a heat pump, moving it won't hurt anything.

[AgUsr · Accepted solution]

@Patrick_Caezza  I switched it to OB and it worked!! Thank you very much.