I have a Goodman PGB024075-1. It was freezing up due to the coils / fins being covered in dust. So I opened up the top and sprayed it out. After that, it worked great for about a day. Now it will not even try to run. Neither the compressor nor blower motor runs. The blower will not run even when I have only the fan turned on on our thermostat. I opened it up, and the circuit board inside has a red LED. It was on, which means it has power, but when I turned on the AC, it blinked 6 times, then paused and blinked 6 times again. (I guess this is a signal that something is wrong with the compressor?) Then it made a loud click and the light turned off and will not turn off even when I flip the breaker on and off again. I checked the 5amp fuse on the control circuit board, but it looks OK. What should I try? I have a volt meter, but not sure what to do with it. The unit is still getting power.

Are you saying the control board in the furnace is flashing 6? Code should be on the back of the door.