Your Bounder was manufactured with a CCI 7719 propane detector with solenoid valve at the propane tank.
If you have an on/off switch on the detector it is original.
Turn detector off and then back on, when the detector quits beeping, you should hear a thunk from the solenoid valve. The thunk means the valve opened and the system is working. If you feel the need to hotwire the solenoid, the coil is 9 volts @ 0.1 amps. Do the math and add the necessary resistor.
If your detector has aged out, there are 3 options.
CCI is out of business.
1: Replace the detector/valve assembly with a Safe-T-Alert detector/valve assemble.
2: Remove the valve and replace the detector with an audible alert only.
3: Have your CCI 7719 repaired by Larry @ email@example.com
I have one of Larry's repaired detectors on my bounder and it has worked well for 8 years.
I personally like the safety feature of having the propane shut off if there is a leak and you're not in the area.