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The last 10 posts

Wednesday, March 12th 2014, 2:49pm

by onkio (Guest)

RE: "Flashing 24V" problem - fixed!

Hi everybody.
I had the problem with blinking 24V indication too. The fix is quite easy - change all 3 electrolytic capacitors:
C8 - 470M/16V 85 °C -> 470M/16V 105 °C
C7 - 220M/50V 85 °C -> 220M/63V 105 °C
C9 - 100M/16V 85 °C -> 100M/16V 105 °C
All of them are undervalued from temperature point of view and one also from voltage point of view. I have already repaired lot of them (>30pcs) with 100% success. The affected models are mainly Irritrol Junior MAX * and sometimes also Toro DD *. Do not change resistors or zener diodes, it may caused another problems.
Marian


Thanks! Thanks! Thanks! Thanks! Thanks!

Monday, September 2nd 2013, 5:33pm

by marian

"Flashing 24V" problem - fixed!

Hi everybody.
I had the problem with blinking 24V indication too. The fix is quite easy - change all 3 electrolytic capacitors:
C8 - 470M/16V 85 °C -> 470M/16V 105 °C
C7 - 220M/50V 85 °C -> 220M/63V 105 °C
C9 - 100M/16V 85 °C -> 100M/16V 105 °C
All of them are undervalued from temperature point of view and one also from voltage point of view. I have already repaired lot of them (>30pcs) with 100% success. The affected models are mainly Irritrol Junior MAX * and sometimes also Toro DD *. Do not change resistors or zener diodes, it may caused another problems.
Marian

Thursday, November 8th 2012, 6:41pm

by Wet_Boots

RE: Irritrol Junior Max, 6 stations

Absolutely hate it. No clear instructions. Yes, I know I can download a manual. I do not wish to deal with sprinkler company.

Can someone recommend a reliable, no brainier?
Thanks!
Consider a Hunter XC-600 - it looks a bit toy-like (they want you to spend more for a bigger controller :)) but it performs all the essential functions

Thursday, November 8th 2012, 4:39pm

by Annie (Guest)

Irritrol Junior Max, 6 stations

Absolutely hate it. No clear instructions. Yes, I know I can download a manual. I do not wish to deal with sprinkler company.

Can someone recommend a reliable, no brainier?
Thanks!

Wednesday, May 30th 2012, 1:19am

by Slundi (Guest)

Flashing 24V

After changing all the 3 Electolyts and and the power resistor it started working fine first but after a while (~1h) the 24V problem came back. I contacted technical support and they suggested to replace the controller because this problem msot probable hit the processor.

The Zener voltage is 9.32V



I gave up with this product and will go for another, more reliable one.

Monday, May 7th 2012, 2:46pm

by harmi (Guest)

The end

I gave up and today ordered different type/brand of controller.

Tuesday, May 1st 2012, 11:06am

by harmi (Guest)

Slundi thanks, I will give last chance to correct value of mid capacitor (I put 470uF/35 instead of original 220uF/50V and measured there >70V and capacitor was hot). If this does not help, looking for new controller, this does not make sense. PH.

Thursday, April 26th 2012, 2:28am

by Slundi (Guest)

Harmi, I wil try to emasure the Zener voltage over the weekend. Original electolyts (from top to down): C9=100uF,16V,85C; C7(middle one)=220uF,50V,85C ; C8=470uF,16V,85C

Wednesday, April 25th 2012, 5:15pm

by harmi (Guest)

Well, unfortunately I have further problems and partially similar to huflyer mentioned earlier. Multiple zones goes on concurrently. This seems some overheating issue, after power off and some break it gets corrected, but around 4th-5th zone (~15-20mins) it creates multiple zone problem. I pulled out PCB from box and testing now on desk. I realized that middle electrolyt (after replacements I put there 470uF/35V) is warm. But heating resistor is not the reason. I realized that voltage on this Cap is 33V= and 73V~?!?!, which I cannot understand. I need try different multimeter to verify AC value. Also ZD1 (located between red LED %scaling and PROG button) is overheated, PCB under it is already darker than the rest. I think R5 is 330R.

Although I do not think that the problem could be with precise capacity, could you pls share values of original electrolyt capacitors as I replaced one or two with not exactly same value. And also could you pls measure voltage on ZD1, whether it is 9.3V= or so. I will give some further tries, but already losing patience with such crappy tech design. But I have no ilusions that TORO or someone else will have much more reliable device, but this combination of power resistor and electrolyts is really great idea :-(

Tuesday, April 24th 2012, 4:55pm

by Slundi (Guest)

Flashing 24V problem

I have exactly the same problem with flashing 24V sign and no output power to solenoids. The PCB at the zener and at high power resistor is burnt. Thanks for sharing the issue with electrolyts because I wanted to replace the resistor only. Now I plan to replace all the 3 eletrolyts and the resistor.



Does anybody know the color codes on R5 resistor, the big one at the elecrolyts? Colors are not really visible on my component and I am not sure it kept the original value while overheated. I measured 151 Ohm.