User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 4 of 4
  1. #1

    Unhappy Water pump won't shut off after low flow use

    Does anyone know if there is a check valve between the fresh water tank and the pump? We have an issue where if we run water at a faucet reduced rate (half open) for only 10-20 seconds, then pump will come on but will not shut off unless I go back and turn the faucet on full until air sputter out and the pump cycles faster and then it will finally shut off.

    If I turn a faucet on all the way for the same 10-20 seconds, it will shut off fine. The same happens with the toilet if we only flush a little water down instead of holding down to fill the tank.

    My suspicion is there is a leaking intake pipe or check valve?

    Anyone else have the same issue or ideas?

    Our 323 is only a month old and the dealer is over 2 hours away so I am hoping I might be able to take care of this myself.

  2. #2
    We Have a Great Site Team WhittleBurner's Avatar
    Join Date
    Nov 2013
    In the Mitten !
    Blog Entries
    91 Post(s)
    0 Thread(s)
    We've had no issue , I'm not 100 % on this but I think I recall reading there is a check valve behind the soap dish in the shower. Someone more sure will likely chime in soon
    Marcy & Gary
    2014 Grand Design - Reflection 303RLS
    2022 GMC 3500 Denali Duramax Longbed SRW
    2015 GMC Denali 3500 - Retired
    2003 F350 - retired
    We're in trouble now, the dog are bloggin'!

  3. #3
    Site Sponsor Dave and Monica's Avatar
    Join Date
    Nov 2013
    Gore Bay, Ontario
    Blog Entries
    0 Post(s)
    0 Thread(s)
    Pwrplay...give GD Customer Service a call and they'll help troubleshoot the issue with you.

    Dave and Monica - Gore Bay, Ontario
    Vitus the Hungarian Vizsla
    2014 Reflection 337 RLS #129
    2008 F250 V10 CC Lariat RWD

  4. #4
    Ok so problem solved . replaced the factory installed Flojet with a Shurflo Revolution 4008 and problem is resolved. This pump is much quieter than the Flojet. It sounded like a jack hammer before. I was going to try an accumulator, but this pump doesn't need one due to its By-Pass valve, so it doesn't cycle, it just continuously runs.I'll be calling Grand design to cover the pump under warranty, Dean at their customer service dept. already said they would.

    Also there is no check valve between the pump and the tank. I dropped the under belly cover to take a look. What a disaster under there..Sheesh!! Wires are hanging everywhere, nothing is tied or strapped. The heating ducting (dryer vent hose) for the "heated fresh water tank" was squished between a frame rail and the flooring. So no heat was making it the fresh water tank. (Good thing we don't winter camp or else our water would freeze LOL). One of the nuts for the tank level sensors was loose and would have come off in no time giving false readings.

Similar Threads

  1. Shower wand flow low on GD2150
    By bailer6334 in forum Plumbing and Water Systems
    Replies: 8
    Last Post: 10-10-2016, 07:13 AM
  2. Maxxfan in bedroom won't shut off
    By Capt Jim in forum General Tech Topics
    Replies: 3
    Last Post: 08-31-2016, 10:06 AM
  3. Water pump will not shut off, air in the water lines
    By Kelley4498 in forum Plumbing and Water Systems
    Replies: 20
    Last Post: 07-25-2016, 07:11 PM
  4. Water pump is slow to shut off
    By pwrplay in forum Plumbing and Water Systems
    Replies: 6
    Last Post: 09-15-2014, 05:18 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

DISCLAIMER:This website is not affiliated with or endorsed by Grand Design RV, LLC or any of its affiliates. This is an independent site.