I go to turn on the heat,, but nothing happens, pulled cover off thermostat to see if it is wired right,, but i'm not to sure if the poeple wired it correctly,, i have green wire to "G",, red wire to RC and jumped to RH, white wire to W, Yellow to Y, Blue wire to B,, the brown wire isnt hooked up, and there isn't anything hooked to the "A" terminal,, if this is correct wiring,, please let me know.. Thank You.