Plz check my wiring

[pa24]

When the heat is turned on, it only blows cool air. I toggled between the O and B wire in the Heat Pump setting on the app and it doesn't help. 

I switched back to my old thermostat and the heat works so I believe it's a Nest problem.

Can someone check my wiring and let me know if it's wired correctly? Much appreciated.

[Patrick_Caezza]

Your wiring looks good, try doing a factory reset and set it up again.

Nest Thermostat 

1. Reset your thermostat. Go to Settings  > Factory Reset. 
2. Begin thermostat setup with the Google Home app again. On the main screen, tap + > Set up a Nest product.
3. Re-enter all the wires connected to your thermostat. Double check that you account for any unconfigured wires.