Sorry to hear about your unfortunate mishap and glad to hear you are ok.

In discussion with Tom Carr a couple years ago regarding landing gear failing to come down, he had said if this happens to shut the master switch off for 5 or maybe 10 minutes. The reason you need to do this is to let the solenoid in the power pack cool down.

If it does turn out to be a faulty solenoid, it can be changed in situ. I had to change mine. They are fairly expensive but after some research I found alternate part numbers which brings the price down considerably.