Wiring for EM Heat

[kaniJustin]

Hi,
My HVAC system has a AC condensor & electric furnance. Unfortunately, it doesn't have a Heat Pump. Currently I'm using EM heat to warm the house. I tried to install Nest Learning thermostat. Althought I matched the wires with the old thermostat I got the error e78 "W2-aux wire by itself". Without a heat pump would it still be possible to do the wiring without any errors and use EM Heat only in Nest thermostat?

Make: Goodman company
Model: VSC130481AA
Serial No: 0908245403

Old thermostat wiring	Nest thermostat wiring
R	Rc
Y	Y1
G	G
C	C
W2-AUX	W2-AUX

Thank you,
Kani

[zoeuvre]

Hi kaniJustin, 

Yikes! If your HVAC system does not have a heat pump and you are using only the electric furnace (EM heat) for heating, it is still possible to install and use a Nest Learning Thermostat. Since you don't have a heat pump system, kindly move the W2 wire to the W1 terminal. 

Let us know how it goes.

Best,

Zoe