Propane leakdown
I put a pressure gauge inline between the tank and regulator for the first time ever. After I shut the gas off the pressure on the gauge will drop overnight from green (pressurized) to the red (meani...
Forum Discussion
RV Propane Leak Test.......
High Pressure Side (before Regulator)
Turn the main LP Gas Valve to the on position and listen for the initial PSST sound. After a second or two, the sound of flowing LP should stop.
Next step is to notice the green band in the clear regulator cap. Now turn the main LP gas valve off at the LP tank for
3 to 4 minutes.
Watch the green band in the clear regulator window, and it should stay green. If it turns red, (low gas indicator), this indicates a possible leak.
Low Pressure Side (after the Regulator)
Requires using a manometer connected to system.....stove top burner at manifold can be used
Valve in Propane Supply....verify system is 11"WC
Valve out Propane Supply...then slowly open burner knob and drop system pressure to 8"WC then close burner knob
Monitor pressure for 15 minutes....no change in system pressure then system is GOOD
System pressure drops....how fast will indicate size of leak
But only 15 minutes is required for leak down test on low pressure side
And only 3-4 minutes on high pressure side
Doubt you have a leak....indicator green/red is NOT a accurate means of testing
High Pressure Side (before Regulator)
Turn the main LP Gas Valve to the on position and listen for the initial PSST sound. After a second or two, the sound of flowing LP should stop.
Next step is to notice the green band in the clear regulator cap. Now turn the main LP gas valve off at the LP tank for
3 to 4 minutes.
Watch the green band in the clear regulator window, and it should stay green. If it turns red, (low gas indicator), this indicates a possible leak.
Low Pressure Side (after the Regulator)
Requires using a manometer connected to system.....stove top burner at manifold can be used
Valve in Propane Supply....verify system is 11"WC
Valve out Propane Supply...then slowly open burner knob and drop system pressure to 8"WC then close burner knob
Monitor pressure for 15 minutes....no change in system pressure then system is GOOD
System pressure drops....how fast will indicate size of leak
But only 15 minutes is required for leak down test on low pressure side
And only 3-4 minutes on high pressure side
Doubt you have a leak....indicator green/red is NOT a accurate means of testing
