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Spark not working – won’t start valves despite all attempts

Stefano
Updated at 2025-07-23 06:55:23 UTC 

Hi everyone,


I’ve been using a Netro Spark (8-zone model) for some time, but recently it stopped working properly.

The controller connects to Wi-Fi and appears online in the app, but when I try to start any valve (manually or via schedule), it says “communicating” and nothing happens.


Here’s what I’ve already tried:


  • Restarted the Spark multiple times
  • Performed a full reset (12 seconds on RST button)
  • Re-added the device in the app
  • Tried to trigger irrigation manually from both the app and the controller
  • Confirmed that the system works when I open the valves manually from the controller
  • Tried different power supplies
  • Connected to a mobile hotspot instead of my home Wi-Fi (same result)
  • Updated the firmware to the latest version (v3.3.0)
  • Purchased a brand new Spark controller and tested it — same exact issue



At this point, it looks like the issue is not hardware or network-related.

Could it be a firmware bug or a server-side problem?


Any help would be greatly appreciated!


Thanks in advance,

Stefano Mauri


View: 688   Answer: 2

Issue with Netro Spark

Fabrice GOUFFRAN
Updated at 2025-07-23 06:34:33 UTC 

Hello,


Since a few days my Netro is not receiving data from the different Whisperers connected and all of them are well connected to Wi Fi and charged. I am not able to run manual watering, only the planned ones go. It looks like there is an issue or with my Netro Spark or with the Netro Server. I am based in Italy. Please let me know. Thank you.


View: 685   Answer: 2

Why can’t I change my zone off whipsper

Andrew Woods
Updated at 2025-07-22 19:30:55 UTC 
My whisper smart sensor is contacted to my garden plants zone at my holiday home. The smart schedule is not working.this is due to the fact that the sensor battery says it needs charging. Obviously I can’t charge it as I am not there. But I can’t seem to find a way of disconnecting the sensor from the program and on to smart schedule 
View: 672   Answer: 1

Problem: Spark 8 controller stuck on “in communication” when activating valves

Stefano
Updated at 2025-07-21 21:17:23 UTC 

Hi everyone,

my Netro Spark 8 controller connects correctly to Wi-Fi and shows as online in the app. However, when I try to start irrigation manually from the app, it just stays on “in communication” and nothing happens.


I’ve already tried:


  • Using a different Wi-Fi network (even a mobile hotspot)
  • Replacing the controller with a new Spark 8
  • Restarting both the app and the device



If I activate the valves directly from the controller, they work fine — so it’s not a hardware issue.


Any suggestions on how to solve this?

Thanks in advance!

– Stefano


View: 711   Answer: 1

My programme stop after few minutes

Franck FONTANEL
Updated at 2025-07-18 19:49:49 UTC 

When I Launch the program , it stop after few minutes…

I don’t know why ?

View: 711   Answer: 1

Change the sprinkling schedule

nsutherland
Updated at 2025-07-14 01:33:11 UTC 
How do I reset the length of time sprinklers are on?
View: 781   Answer: 1

How to increase length of watering time with the automatic metering

Veronica Slaughter
Updated at 2025-07-03 12:43:45 UTC 
I have 2 zone in full sun with hydrangea and Japanese maples. I need to increase the length of watering time on the automatic watering cycle and the frequency
View: 837   Answer: 0

Valve not opening

paolo cellini
Updated at 2025-07-01 05:11:54 UTC 

I have a Netto controller 12 

It starts the water pump but not opening any valve 

View: 437   Answer: 1

Font size/ dark mode

Kirk Davis
Updated at 2025-06-28 04:53:19 UTC 
Dark mode and font size (especially a problem with charts) are two things that were going to be addressed a few years ago. Could I please get a current status on when dark mode will be available and when font size, or at least the ability to zoom the app screen will be available? Turning on the Apple magnifier, or having to take a screenshot and then zoom that so that you can read data is very inconvenient. 
View: 478   Answer: 1

What does the yellow triangle mean?

Jack De Donato
Updated at 2025-06-26 11:48:52 UTC 
Question in subject title
View: 456   Answer: 0

Netro Sprite

Cassio
Updated at 2025-06-26 08:43:13 UTC 

Good morning,


I have my netro sprite with green light showing connected.

Nonetheless, when executing the programs it shows "connection problems". When I try to run the programs manually, it keeps "connecting..." but does not open the valves so that it waters.


I have removed and reset the connection with the network, it becomes green again, but it still not work.

I have also reviewed the electrical connections on the valves, and they are ok.

I have also tested opening the valves manually, they open and water normally.


the only problem is when executing electronically... it keeps "connecting...." and does nothing.


Thanks for your support!

View: 504   Answer: 2

Plant needs

Bob Benny
Updated at 2025-06-19 00:30:05 UTC 

Could you please advise me on how to determine the specific requirements of my rose bush? While I have access to the data, I find it challenging to apply it without knowing the ideal conditions for my particular rose.


Thank you for your help.

View: 538   Answer: 1

Rainfall not correct from Netro or WU- how do I adjust it?

Kirk Davis
Updated at 2025-06-18 03:59:06 UTC 
Need to change the rainfall for the prior day, how do I do it? 
View: 537   Answer: 1

Informations pixie z1 with hub

Lorenzo Bigagli
Updated at 2025-06-14 12:02:48 UTC 

Please

I have had smart cotroller netro for 3 years. Never problems! 

Now i d like to buy z1 pixie with hub! But is it essential the hub for smart controlling? And if yes the hub has to be connected by lan to the router? 

View: 642   Answer: 1

Alessandro Mason
Updated at 2025-06-09 22:08:10 UTC 
Why do my zones only activate for 2 seconds?
View: 891   Answer: 1

Netro App

Bart Abbott
Updated at 2025-06-07 12:43:42 UTC 
Could you add a pause feature in Manual run? When I am running a zone, sometimes I need to halt the run and make an adjustment or fix a leak and then turn it back on. Right now, I have to stop the manual run and then start all over. 
View: 991   Answer: 1

Indicator led is burn out

yigal
Updated at 2025-06-07 12:18:46 UTC 

My indicator led is burn out. whocan I replace it?


View: 1008   Answer: 1

Dropped wifi (2.4 Gz)

C Hill
Updated at 2025-06-06 02:10:45 UTC 
Help for my controller dropping the wifi weekly?  I have to unplug the controller to reset and wifi works.  When on vacation my controller can't be unplugged so is there a fix or work around ?
View: 1090   Answer: 1

Alexa with two Pizie

Stefano Giorgi
Updated at 2025-06-03 16:11:11 UTC 
I can't connect both of my two Pixie devices to Alexa — I can only control one.
How can I fix this issue?

Thank you.


View: 1339   Answer: 1

How do I change schedule

George S
Updated at 2025-05-27 21:37:14 UTC 
How do I change and save schedule? 
View: 1386   Answer: 1