What’s that Hissing Sound?


13 May 2021

Readers may recall me mentioning a hissing sound when we stepped out of the van in Folkston, Georgia a few days ago. That sound, accompanied by a strong propane smell, had us rushing to turn off the propane solenoid.

With the leak stopped, we looked underneath where a nicked hose appeared to be the obvious culprit. Connecting the solenoid to the regulator, the hose contains full pressure when the solenoid is open. Propane had dropped to 20% by the time we clicked off the solenoid switch.

Though we don’t run propane while driving, we didn’t turn off the solenoid. That’s something we will now add to our pre-driving checklist!

Beth called several Tampa area RV service shops, including a Pleasure-Way dealer. All asked if we had bought our RV from them. The PW dealer offered to fit us in two weeks from today, since they consider a propane leak to be an emergency, but only if we agreed to not ask them to look at anything else. If it wasn’t an emergency, the best appointment we could get from any of the shops was in August. Beth quickly moved to researching a replacement by calling Pleasure-Way who shared the contact info for Fairview, the hose manufacturer.

Fairview Canada referred us to their US office who gave us the current part number based on the number from the hose label. In case you need it the number is I6C24FS6MP4 Fairview’s US office sent us to their US distributor; JR Products. Unfortunately, JR didn’t have the hose in stock and said it would be at least two weeks. Not wanting to wait that long, Beth called back to Fairview where the sympathetic customer service representative decoded the part number so we could have one made up locally. It is 3/8” hose, 24” long, 3/8” SAE female swivel, and 1/4” male pipe thread. The only difference from the original tag is that the new hose is 24 inches rather than 18.75 inches.

Finding a quick source for the hose during a pandemic was a bit more challenging. Fortunately, we were at the Truma Sales & Service Center where David Lehman shared his local knowledge. Amazon Hose & Rubber in Tampa is the place to go. They also have locations in Orlando, Miami, and Riviera Beach if you have a need in Florida. We were impressed when they fabricated a new hose in 15 minutes for only $23.

Here’s a close-up of the errant hose. We suspect road debris as this section is not protected on the underside of the van.

We don’t recommend doing your own propane repairs, but sometimes there isn’t another option. We made sure that the solenoid was off before sliding under the van. 

Accessing clearance for a wrench on the tank side of the connection was difficult until we realized that the tank guard could be removed.  Look ahead two photos to see the guard in place. 
Two bolts with nuts on the back side hold the guard on. One of the bolt mounts is shown here. 
I removed the guard without help, but it took two of us to reinstall it. Working against gravity requires at least three hands.

With the guard removed, there is plenty of room for a wrench. The manual turn-off valve and solenoid are also revealed.

The other end of the hose goes into the propane regulator, seen here at the right top side of the photo. The new hose, despite being a few inches longer, worked well.

After testing the connections with soapy water, we performed a pressure test with a manometer hooked to the portable barbecue connection.

We carry a Yellow Jacket manometer for just such occasions. 

We also carry a spare propane regulator, yellow propane tape, and the tools needed to change a regulator. We hope you don’t need it, but here’s a link to a blog entry on having to change a regulator: Under Pressure

The manometer gauge showed just under 12 pounds, and stayed constant for more than 5 minutes. This “5 minute test” made us comfortable that the hose was sealed and the system didn’t have any leaks.

We hope this never happens to you, but you can rest assured knowing that a network of helpful companies, and people, does exist.

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4 responses to “What’s that Hissing Sound?”

  1. Hello, after viewing your video, I checked the tubular tire on my 2017 Lexor. Surprise! same problem. The hose is all cracked. You can tell me where you bought your hose and the part number. Thank you

  2. Part Number I6C24FS6MP4. The company is Fairview Fittings. The post has been edited to add the specifications.

  3. Thanks so much for posting this write up. Our 2018 Lexor propane hose cracked too. I was near Tampa at the time, so I went to the same Amazon hose company and got the replacement part like you suggested. You’re a life saver 🙂

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