Empty Expansion Tank and Glycol all over the driveway

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  • cyoung
    cyoung Member Posts: 54
    No, its tight even after I removed a clamp. There is no play in this so not sure why its leaking.
    2021 320 BOONDOCK, 2017 F150 2.7 ECOBOOST
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  • Bayliss
    Bayliss Member Posts: 1,498
    @Sharon_is_SAM and @cyoung, I looked at my 3020 connection at that location and it has the same amount of aluminum pipe exposed.  It could be that the rubber hose somehow got nicked/sliced during installation and/or while attaching the clamp.  Regardless, discovering the location of the leak is helpful information for the rest of us, so thanks for posting the info.
    2019 T@B 320 S Boondock Lite; 2025 Toyota Tundra CrewMax 4x4
    (Alde: 3020; Refrig: Isotherm Cruise 65 Eleg; Battery: BB 100Ah LiFePO4; Solar: Renogy 220W Portable Suitcase w/ Victron SmartSolar MPPT 75/15 Controller; Victron BMV-712 Battery Monitor w/ Shunt; Pwr Cntr: PD-4135KW2B; EMS: PI-HW30C)
    Greg & Marlene (Tucson, AZ)


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  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,061
    @Bayliss - thanks for confirming.
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
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  • ESH
    ESH Member Posts: 27
    Thanks, @Denny16.  You have been super helpful.  The glycol level has settled pretty close to the max and I am not currently hearing any gurgling so fingers crossed!
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  • jimcenname
    jimcenname Member Posts: 345
    Update, on leaking automatic bleeder on my 400 after gycol service. I banged on my bleeder with a heavy tool and it seems to have worked. Tapping on the bleeder was insufficient, had to bang. After 4 days of heavy Alde use no more leaking. 
    2019 T@B400
    TV: 2017 Nissan Frontier SV 4X4
    Southern California
    Full-timer since 2019
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  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,061
    Hey it worked!  Lucky you.  Now let’s see if it happens again.  We need someone to replace their flow assembly and disect it to see the workings.  
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
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  • cyoung
    cyoung Member Posts: 54
    I ended up taking one of the clamps off the hose assembly and noticed that the aluminum pipe has severely corroded and there is also a hole in it, which explains the leak. I sent Nucamp these pictures and they said it's a factory defect. I hope this is a isolated incident. Everyone keep an eye on this pipe but unfortunately you probably wont see anything unless you remove a clamp which you would only do when you replace the glycol. My dealer is ordering a replacement so hopefully they don't find any more damage.
    2021 320 BOONDOCK, 2017 F150 2.7 ECOBOOST
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  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,061
    Good to know!
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
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  • ScottG
    ScottG Administrator Posts: 5,655
    cyoung said:
    I ended up taking one of the clamps off the hose assembly and noticed that the aluminum pipe has severely corroded and there is also a hole in it, which explains the leak. I sent Nucamp these pictures and they said it's a factory defect. I hope this is a isolated incident. 
    Me too, since I believe most of the Alde's innards are aluminum!
    2015 T@B Max S (320)
    2015 Nissan Frontier SV V6 4x4
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  • jimcenname
    jimcenname Member Posts: 345
    Update: After a professional replaced my glycol a few weeks ago the automatic bleeder started leaking glycol at a rate of 1 fl oz per hour. Alde sent me a replacement bleeder but before I swapped it I really beat on the malfunctioning valve, I was feeling daring since I had a spare in-hand. After 8 days of use the original bleeder is no longer leaking glycol. I will keep the new one as a spare (cost $75 with shipping). FYI, since my t@b was new, ~500 days of use, the glycol reservoir gurgled when the Alde heat ran and I didn't care since it all worked well. I reduced the pump speed to 2 from 3 and the gurgle is now quiet and the system still works well. 
    2019 T@B400
    TV: 2017 Nissan Frontier SV 4X4
    Southern California
    Full-timer since 2019
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  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,061
    @jimcenname - what did you use to hammer the valve?
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
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  • jimcenname
    jimcenname Member Posts: 345
    I used a large screwdriver using its plastic handle and hit it as hard as I could while trying not to damage it or anything adjacent. The mallet was too big. Initially I tapped it gently with a small wrench.
    2019 T@B400
    TV: 2017 Nissan Frontier SV 4X4
    Southern California
    Full-timer since 2019
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  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,061
    Thanks @jimcenname.  I hope your luck holds out.  That valve is the Alde weak link.
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
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  • jimcenname
    jimcenname Member Posts: 345
    @Sharon_is_SAM, I agree, over read enough about the bleeder to believe it's common. 
    2019 T@B400
    TV: 2017 Nissan Frontier SV 4X4
    Southern California
    Full-timer since 2019
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  • Tampakayaker
    Tampakayaker Member Posts: 558
    jimcenname said:
    I used a large screwdriver using its plastic handle and hit it as hard as I could while trying not to damage it or anything adjacent. The mallet was too big. Initially I tapped it gently with a small wrench.
    That's how you repair a HD that won't read/write.  NOTE that is a last resort, but sometimes it frees up the actuator.
    2006 RAM 1500 4 door, 2016 T@B 320 MAX S 
    Tampa FL
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  • cyoung
    cyoung Member Posts: 54
    Update to my leaking Alde heater system. Got my camper back today from the dealer. They are not sure how or why this happened on a new model. The fitting was severely corroded and several holes were visible. They replaced the fitting and drained the entire system before refilling with new fluid. System was pressurized and tested for leaks. Works great now so hopefully the problem is resolved. Everything was covered under warranty and Nucamp is aware of this in case other units are affected. 
    2021 320 BOONDOCK, 2017 F150 2.7 ECOBOOST
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  • Denny16
    Denny16 Member Posts: 5,431
    Grand, glad you got it sorted out.  B)
    cheers
    2018 TaB400 Custom Boondock,  Jeep Gladiator truck, Northern California Coast.
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