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mtmtntop

Unregistered

1

Sunday, May 8th 2016, 4:22pm

toro greenkeeper 212 no power to valves

everything worked fine when i shut it down last year. upon startup, the sprinklers in the closest zones are all running, in several different zones. even if i have the controller at off, the sprinklers continue to run. i have to shut off the water to stop the sprinklers. i checked for power in the controller box and have it at the terminal strip. the transformer feels warm, the fuse is good. is there a way to check if the transformer is good? thank you

SunCoLawns

Advanced Member

Posts: 111

Location: Omaha, Nebraska, USA

2

Thursday, May 12th 2016, 4:22pm

Do the valves shut when you unplug it? If not, it's a valve issue. One issue with the 212 is, after a power surge or lightning strike one or more zones may run continuously. Sometimes this can be rectified by replacing the module for that zone, sometimes not.

mtmtntop

New Member

3

Monday, May 16th 2016, 7:12pm

i threw the breaker to the unit because it was hard wired, and disconnected the battery. when i turn on the water, all the zones near the house are running. 1 more piece of information has come up. my neighbor has the exact same problem. i am not sure of his brand controller. so next question, is it toast or can i replace a part? thanks for the help

mtmtntop

New Member

4

Monday, May 16th 2016, 7:46pm

or would i just be better off replacing the controller? I have 10 zones. at least 4 are open when i turn the water on now.when you said to maybe replace the module, is this the unit inside the controller or isthe module attached to the valve? i am trying to figure out if i have to replace valve parts or controller parts. thanks

Wet_Boots

Supreme Member

Posts: 5,136

Location: Metro NYC

5

Monday, May 16th 2016, 8:27pm

If zones are running when the controller has no power, the problem is not the controller, it's the valves.

mtmtntop

New Member

6

Monday, May 16th 2016, 8:44pm

got it. thanks. i'll update when i get it working

mtmtntop

New Member

7

Sunday, May 29th 2016, 5:08pm

replaced solenoids, still have open valve

i replaced the solenoids on 3 valves which were the closest to the house and all in the same underground box. i still have one circuit that runs when the controller is turned off and the water is on. it makes no difference if i open and close the manual valve on that circuit. i am guessing that i need a whole new valve unit? what makes the valve units go out in the first place? could it be from a power surge? this system was hardwired, but i am thinking to put it to a plug going through a surge protector. thanks for the help.

Wet_Boots

Supreme Member

Posts: 5,136

Location: Metro NYC

8

Sunday, May 29th 2016, 7:09pm

stuck-open valve plus unplugged controller equals mechanical failure of the valve - diaphragm assembly is the top suspect - just replace the valve

mtmtntop

New Member

9

Sunday, June 5th 2016, 11:43am

changed diaphragms still stuck open

i changed out the diaphragms and still have 2 open zones. this is with controller off. its hard to believe that the valve bodies themselves are somehow broken and 2 of them in one season? do i really have to change out the valves themselves? i dont see any other parts that i can replace. i took out the rings that seat the diphragms and they are intact. thanks

Wet_Boots

Supreme Member

Posts: 5,136

Location: Metro NYC

10

Sunday, June 5th 2016, 1:21pm

change the entire valve when you aren't certain what to look for - some valve bodies can develop internal cracks - some fail because of sloppy installation (too much glue) - of course you checked to make sure there are no issues with the solenoids (yes, no?)

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