Originally Posted by jks
If the valve from the propane tank is fully opened you may get too much pressure to appease the sail switch due to regulator not regulating well. Your stove would still work. Try opening the valve at the tank just barely to see if that works. Easy test.
Originally Posted by twinboat
The sail switch sense air flow. It has nothing to do with gas flow.
And Propane Valves are NOT to be throttled...they should be FULLY Opened or FULLY Closed
Never partially open propane supply valves. They have seats to prevent leakage when fully open & fully closed.
Only packing/o-ring on valve stem prevents leakage when opening/closing valve
Besides....once propane valve is cracked open FULL propane pressure is going to Regulator which takes that 100-250# supply pressure down to 15# in 1st stage then regulates it down to 11'WC (0.39psi) at 2nd stage output.
Stove top/oven have their own LP Reg under the stove top.
It controls to 10"WC (0.36psi) for burners when Main LP System is at 11"WC