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HD-12 says it's watering but it's not

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8 comments

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    Jarrod Smith

    Steve,

             The terminal block that controls the power being applied to the zones is a fairly robust piece of equipment. It is hard for it to fail without a serious feedback passing through it. It is our experience that it is normally the common wire in symptoms like this. That being said it isn't impossible for it to be the machines fault so we should test it. If you have a multi meter that is the easiest way to test this theory. You can run a zone and test the voltage coming out to make sure the machine is supplying enough power. I find continuity tests to be the best for this type of problem. You would set the meter to the lowest resistance and then connect the zone one wire to the red lead and the common wire to the black lead. If you get a resistance there is a complete circuit and the wiring is ok but if you don't get a resistance there is a break in the line and that is why the zones aren't coming on. We responded to your ticket this morning but we didn't yesterday because we were closed. We are open 6 days a week and Sunday is the only day we are closed. If the steps I described here and in the ticket don't work for you or you are unable to test the wiring let us know in your ticket and we can take steps to setup a repair of the unit for you. I hope this helps you and I look forward to getting you back onine.

    Jarrod S.

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    RBramlett (Edited )

    I have a very similar (or perhaps exactly the same) issue as what was reported by the original poster.  I also have the HD-12 which worked flawlessly for about 4 months.  One day I suddenly noticed the lawn was not getting watered.  Here is what I've tried while troubleshooting after noticing the issue:

    1) I tried to run manual zones and found that unit would not power on any of the zones. 

    2) I did a factory reset and reloaded firmware updates.  This did not fix the issue.

    3) I used my multi-meter to check continuity between common and the positive zone wires and found resistance as expected.

    4) I checked for voltage between the common terminal post and the positive post for each zone I was manually turning on.  There was no voltage.  This seems to be the problem.

    While the display on the unit, WiFi connection, and phone app are all working as they always have, the unit's hardware/circuitry is not allowing voltage/power to pass through to energize the active zone.  Is there an input power fuse on the circuit board that may be blown that I could check and replace?  

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    Jeff Fortin

    I'm also having the same problem.  Took a few cycles to notice, as my program runs in the night, but everything appears to be 100% normal and working except that the lawn isn't actually being watered.  Trying to manually do it through the app or the device itself, everything looks normal, but no sprinkler activity at all.  When I go out to the valves and manually activate a zone, it works fine, so it's not a water issue.  It's like the HD-12 has just blown an internal fuse or otherwise decided not to turn on zones anymore (while reporting that they are active).

    Any help would be appreciated!

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    RDLinKY (Edited )

    This happened to me as well. I was using the Finish By Sunrise offset feature. There is a major bug in this feature that occasionally causes this. It seems that if the runtime is long (at least on mine) this would happen. You can see it if you have the Watering History Log emailed to you, it will show no watering when the phone app says it did water.

    I removed the Finish By Sunrise offset and just did the standard fixed start time and everything works fine. 

    This bug has been around since the Finish By Sunrise feature was introduced so needless to say I am very disappointed in the length of time that it is taking for this to be fixed. Actually I would like to see a more simple approach where we can choose a Finish By a Time so that watering can be completed prior to shower time which is not based on Sunrise. I have suggested this feature back in Oct of last year and so far all that I have see is that they are "Gathering Feedback" on it.

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    Jeff Fortin

    I don't appear to have that enabled, and in addition to the program not working, I can't force it to manually water at all either.  Like just picking a zone and starting for 2 minutes doesn't result in  water.  Just tried a factory reset, that didn't appear to help either. 

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    RDLinKY

    Sorry, I completely miss read your issue. Sounds like you have a wiring problem. I'd check the common wire, if that is broken or not attached, it will produce the same issue that you describe. 

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    Jeff Fortin

    I obviously haven't been messing with the wiring since it was installed, and it appears solidly connected to the machine (and wire nuts look good on the master valve end as well).  It worked two weeks ago, so I'm doubting that wiring damage occurred.  Just seems that the HD-12 isn't outputting the power.  For a machine I've only used 3 seasons, that would be a fairly disappointing (and expensive) result.  Have a ticket in, hopefully can find the root cause and maybe they can help me out...

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    Jeff Fortin

    After doing checks with customer support, same conclusion:  no voltage between C wire and output zone terminals when zone is activated.  Just stopped outputting power.  Device is 3 years old, with light use in the northeast.  Not sure what repair/RMA cost is going to be, but hopefully not bad or I'm going to have a hard time justifying it over just putting the old manual RainBird controller that worked since they built my house 15 years ago...

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