Note: I am not an HVAC Professional, but have hooked iup a few T-Stats in my day.
@speadie taking a stab at this, if you see anything incorrect, please feel free to jump in,
If you have a Heat pump, which is what it sounds like, there is a setting to switch the Heat and AC (B/O) settings. However, is it blowing anything at this time, is the Fan Running?
If you have Gas heat then the B/O should not matter.
Based on what I see and believing you have an Heat Pump, the wiring may look something like this:
Blue goes to C
Yellow goes to Y
Red goes to RC
Green goes to G
Then White would go to O/B assuming it is a B under the wire to the left of the screw. If it is a W then you would connect it to the W on the Wyze T-Stat which may indicate it is not a heat pump.
correct this seems to be the way I have set it up, however the fan is running but cold nor hot air comes out . I can’t tell what kind of heating system there is unfortunatley
on my previous thermostat the white wire was connected to the B. O had its own terminal.
Previous terminal -
red wire- R
Green wire-G
White wire -B
Yellow wire -Y
Blue wire-C