Now that the cooler temps are here, we'd like to get the gas fireplacing working (it hasn't worked since we moved in last winter). The pilot light is lit but the burner won't start upon turning the switch on from the wall. We've checked that there is electricity flowing to do whatever it suppose to do and we do have electricity. What exactly the electricity is for we don't understand gas fireplaces much. Any information you have on that might help. Since we have a pilot light we don't think it is the thermocoupler or could it be? What else should we check?