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Old 02-25-2019, 09:10 AM   #1
CapLeaker
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Default Aerogarden Ultra LED blinking or strobing grow lights repair

Have an Aerogarden Ultra here. All growing light LED's in the panel are blinking.
It started with an occasional blink here and there, but a day later it was strobing like crazy.

First off there is a 120V AC going through that little wire to that LED panel! Take it apart and there is a little PSU hidden in there. Three Chmec? 25V 1500uF caps looking pregnant and their guts out. Going to do a full recap with Panasonic FR and that should take care of that.
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Old 02-25-2019, 12:38 PM   #2
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Default Re: Aerogarden Ultra LED blinking or strobing grow lights repair

i would be tempted to relocate the psu to the outside.
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Old 02-25-2019, 02:31 PM   #3
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Default Re: Aerogarden Ultra LED blinking or strobing grow lights repair

Having the heat sink over the caps like that, will cook 'em good and they don't like that. I hate it when the caps are under a heat sink like that, as it always spells trouble.
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Old 02-25-2019, 07:12 PM   #4
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Default Re: Aerogarden Ultra LED blinking or strobing grow lights repair

"First off there is a 120V AC going through that little wire to that LED panel! " That is due to the little blue disk cap between Hot and Cold side.
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Old 02-26-2019, 06:33 AM   #5
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Default Re: Aerogarden Ultra LED blinking or strobing grow lights repair

budm, the input of that PSU has 120VAC, which comes from the base of the unit. It has nothing to do with that cap. Basically there are 2 boards, one in the base and that one inside the LED panel.
When I measured the 120V, the LED panel with the PSU inside was unplugged.
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Old 02-26-2019, 02:57 PM   #6
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Default Re: Aerogarden Ultra LED blinking or strobing grow lights repair

What I am saying is that if you measure AC V between earth GND and ether one of the cold side red or white wire, you will see AC (the current should be very low), and I have have seen that safety cap failed badly even though they are supposed to fail open circuit.
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Old 02-26-2019, 03:14 PM   #7
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Default Re: Aerogarden Ultra LED blinking or strobing grow lights repair

Yeah, I know what you mean now. Yes, I've seen these fail too.
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Old 03-03-2019, 10:28 AM   #8
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Default Re: Aerogarden Ultra LED blinking or strobing grow lights repair

Got the caps, put 'em in ... aaaand? It works perfectly fine!
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