small propane leak, HOW to find where?
(I've been working on this problem on and off for a week now and ready to see what others think.) Last trip out we smelled a very faint trace of propane. After the trip at home I looked at everythin...
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On a 2 stage regulator there are 2 vents.....a small pin hole vent on 1st stage and then a larger screened vent on second stage.
Neither vent should bubble up when checked.....if either does then diaphragm is leaking.
Mixture of soap and water is a good solution to check for leaks BUT.....rinse it off otherwise that soap residue can corrode
You stated the smell is around heater outside access panel....remove panel and check gas connection at furnace gas valve.
You can also check if that furnace gas valve is not fully closing off.
Use a long BBQ lighter.......with furnace off stick lighter in next to burner slot and see if you can light a small flame. If so gas valve needs replaced as it is leaking thru.
Neither vent should bubble up when checked.....if either does then diaphragm is leaking.
Mixture of soap and water is a good solution to check for leaks BUT.....rinse it off otherwise that soap residue can corrode
You stated the smell is around heater outside access panel....remove panel and check gas connection at furnace gas valve.
You can also check if that furnace gas valve is not fully closing off.
Use a long BBQ lighter.......with furnace off stick lighter in next to burner slot and see if you can light a small flame. If so gas valve needs replaced as it is leaking thru.
