We had the exact same issue happen exactly 2 days ago. A 24v sensor being powered by the solenoid breakout had shorted out. This resulted in damage to the breakout, and to the 24v DC-DC converter in the PDB. Check the lights on the PDB and ensure that the 24V light is on. If it isn't, you've probably fried the 24V line on the PDB and it will need to be replaced. Hopefully the extent of your damage isn't as serious as this
