So it's unlikely that the pressure from the start gas could cause the solenoid to not operate? Only reason I ask again is that is one of the trouble shooting suggestions in the manual.

Page 26


Problem:

2. No gas light up during start

Cause and Fixes:

Solenoid valve locked closed due to high pressure gas
Avoid pure propane. Use a maximum of 70/30 propane butane gas


I also read on page 8 of the manual to only fill the canister 1/4 to 1/2 full

I'm only mentioning this again because I want to know if that little canister should only be filled no more than 1/2 way, I've never noticed others doing this and I've never done that on my 1300, I just fill it until the powermax stops flowing :P