You should check the valve, how you explain the valve grid and short. It had happened to me with my AL80A I changed the original valve because it was exhausted and I bought a Chinese one, after two months a day at the ignition I saw a flash, I checked and I did not see anything abnormal, I disassembled the valve and noticed the grid in short. Hence the decision to change valve type, modification with gs31b. Now AL80A is back more alive than ever. Greetings Ale
