Wiring diagram to connect programmable Thermo to Heat Pump

Instructional videos, Honeywell instructions and wiring and a link to Just Answer with wiring help.

https://www.google.com/search?q=wiring+Honeywell+RTH5160D

https://www.justanswer.com/hvac/bzpmd-purchased-new-honeywell-rth5160-non-programmable.html

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Id say that's probably correct. Since you only have 2 wires, if it doesn't work one way, it has to be the other!

how can i tell if my hot and ground are are hot with out haveing to put meter on wires?

E Back up heat/ white wire
AUX Jumper to E
Y yellow wire / Cooling - compressor
G Indoor fan Green wire
O Reversing valve energised in cooling most units Orange wire
L unknown. consult your manual Leave open
R Main power Red wire
B Reversing valve energised in Heat Rheem units only.
C Common second leg of power Blue wire.

Look at the base plate just below the w position. This is the correct placement for heat pumps.

Depends on what type of heat you have...gas, oil , electric, heat pump? Make sure it is the right thermostat for your heat source. Some thermostats have a switch on the back for fuel or electric.

It really depends on the circumstances. Are you just trying to turn the fan to the "ON" position from the "AUTO" position? If that is the case, there will be a problem with the thermostat, wiring to the thermostat, or the unit itself. That would sum up a "thermostat" problem for the fan not working. If your trying to call for HEAT/COOL and the fan isn't coming on, that is another issue.
You can try to see if the G terminal is hooked up on the thermostat, that's going to be your "FAN" terminal. If it is connected, you will have to go to the unit and see where it is connected. At this time, we would need to know the model and manufacturer of the unit. Thanks, hope it helps.

Multiple possibilities:
Damage to cable (doing any DIY?)
Failure of thermo
Board gone in heat unit
Possibly simple as loose or disengaged connection, check at thermo & heat unit, if nothing obvious, call serviceperson.

Connect the orange to the o terminal.
Dave

W- White (heat)
Y- Yellow (condenser)
G- Green (Indoor fan)
C- Blue (Common 24v)
R- Red (24VAC)
O/B (Only needed if system is a heat pump)