Upon arrival, I found the outdoor unit not running. I found that the outdoor sensor was no longer functioning causing an A2 code on the outdoor. I proceeded inside and found a A08 code on the indoor board. This indicated a communication fault. I noticed a small burn spot on the board and that it wasn’t sending voltage to the outdoor unit. I ordered the control board and sensor at Standard Supply in Allen. The sensor is being shipped in and should arrive some time tomorrow. The unit is currently heating in electric heat.