Smart hose timer internal flooding - Troubleshooting / Tech Support - Rachio Community
post by franz on Oct 13, 2025
@franz
Co-Founder/CTO @ Rachio
@tkbrigham I am having our customer success team reach out to you.
Thank you for your patience!
post by JBrachio on Nov 6, 2025
I have experienced the same flooding issue with my unit
post by franz on Nov 6, 2025
@franz
Co-Founder/CTO @ Rachio
@JBrachio I will have our CS team reach out to you.
Thank you for your patience.
post by uncgal10 on Nov 11, 2025
Has anyone found a modification to make to prevent the internal flooding? Also does anyone have a picture/video of the internal flooding in action? I have replaced two timers due to this and want to install this third with some preventive measures. There are no leaks from my spigot and other non-smart hose timers have worked great so I am chucking this up to a design flaw.
post by jlpatinop78 on Dec 28, 2025
Merry Christmas @franz I love this product but I am experiencing same exact challenge, even with The battery door is properly closed and secured. Despite this, moisture is consistently found inside the battery compartment.
It appears that the battery door seal weakens over time, allowing water intrusion during normal outdoor exposure (rain or irrigation). This has resulted in repeated battery failures and renders the device unreliable for its intended use.
This issue appears to be related to a sealing or housing defect.
post by dmegee on Dec 28, 2025
I have the same problem. I frequently clean the rust and reset. Usually works. It’s a real problem when I am out of town for awhile. Today I cleaned the valve and the light doesn’t come on and therefore pairing doesn’t work.
post by dmegee on Dec 28, 2025
Mine looks like this too. I have had some success cleaning with vinegar and soda but it has now quit completely and won’t light up or reset.
post by franz on Jan 5
@franz
Co-Founder/CTO @ Rachio
Just getting to these…
Do you still need assistance with this?
post by dmegee on Jan 5
I bought a replacement. It was 8.5 years old so I guess it was time. Thank you for getting back to me.
post by franz on Jan 5
@franz
Co-Founder/CTO @ Rachio
Sounds good, please let us know if you have any other issues.
post by rachio on Feb 7
Hi All
I’m having the same problem, which I fear has contributed to a follow-on issue.
I noticed rust color outside the battery compartment, so I opened the unit and discovered a lot of rust, heavily corroded batteries, and the foam inside the cover was soggy wet.
I used a brush to clean the terminals, replaced the batteries, and left it outside a few hours so the internals could dry.
Later, I connected everything again and turned on the water. Unlike some above, the system seemed to work - the light turned blue and water started flowing; however, when I pushed the button again, the light turned red, but the water just kept going.
Not sure what to do next… is the unit dead? Do I need a replacement?
post by Jbraz on Feb 19
I’m having the same issue. It just keeps dripping out of the battery compartment.
post by AngieTheGardener on Mar 16
I’ve only had the Rachio working for two months in California and it broke with flooding of batteries. So much for this battery set working for the watering season, according to Rachio marketing materials.
post by NickBfromOh on Mar 17
I have also experience this issue. One of the springs is now broken off! 😞
post by Yana on Mar 22
I had the same problem with moisture build-up in the battery case. My hose is not exposed to rain but still got rusted. I cleaned the rust pole and put a fresh battery in the hose that is still working but I am hesitant to use it again because of the poor moisture-proof door.
post by ClashingPlaids on Mar 25
I also experienced this problem, and I appreciate that Rachio provided a replacement. However, I am concerned that there has been no mention of any root cause analysis, unit re-design, or even hacks to avoid the problem. It’s nearly time to put the replacement unit to work, so I’d like to figure out how to avoid a repeat.