Humidifier stays off even when timer starts giving it power.

Wasn't sure where to post this. But i bought a small humidifier that i want to only be on while lights are on. So i connected to a timer set to my light schedule. But the humidifier doesn't turn back on when the power come back. Anyone know how to get the humidifier to automatically turn on once the timers gives it power?

Kenny Grows said:

Wasn't sure where to post this. But i bought a small humidifier that i want to only be on while lights are on. So i connected to a timer set to my light schedule. But the humidifier doesn't turn back on when the power come back. Anyone know how to get the humidifier to automatically turn on once the timers gives it power?

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Faulty timer? It pretty common I've had 3 timers go bad

No sry i didn't exactly know how to word the question. But the timer works, the humidifier resets itself to off once timer stops giving it power. It just i have to turn back on the humidifier once it starts getting power again. Lets say the humidifier is on and you unplug then plug back in the humidifiers power cord, it would stay off until i press the on button. But like most everything in my garden i want this automated

Are you talking about bypassing the on off switch?humidity is less important than causing a fire if you are not careful

I like the sound of bypassing the on off switch, but not so much the fire. But I have built 5+ led lights so wiring and electricity isn't totally foreign.

There's no reason not to run the humidifier during lights out, it's usually more humid during the dark cycle anyway.

Lose the timer, set it to 60% and empty it when it's full of water. The water is fine for the plants; it is, after all, distilled.

@ttystikk
So you are saying run both the dehumidifier and humidifier 24/7. Just set dihum to 60%? Yeah it started to make sense once I typed it. Thank you

Wait just hit me, pretty medicated.

ttystikk said:

There's no reason not to run the humidifier during lights out, it's usually more humid during the dark cycle anyway.

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But humidity spikes during lights out, so keeping humidifier on would just add to it right?

Kenny Grows said:

Wait just hit me, pretty medicated.

But humidity spikes during lights out, so keeping humidifier on would just add to it right?

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right...lol

is your dehumidifier set on auto?

I just set mine on auto and leave on 24/7 in flower

I suspect it's the particular dehuey you purchased that does not support auto-restart after power failure. (and maintain settings)
A requirement if you want to automate via timer.

TintEastwood said:

I suspect it's the particular dehuey you purchased that does not support auto-restart after power failure. (and maintain settings)
A requirement if you want to automate via timer.

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mine doesn't. Bit of a pain.

Lucky Luke said:

mine doesn't. Bit of a pain.

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Yeah and in my excitement (just learning about VPD) I ordered a second identical one for my other tent...

Kenny Grows said:

Yeah and in my excitement (just learning about VPD) I ordered a second identical one for my other tent...

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no drama, just set on auto and leave on 24/7

Lucky Luke said:

no drama, just set on auto and leave on 24/7

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Yea my humidifier has Off 1 2 3, just cycles through them.

I'm trying to follow this. So Kenny you run a humidifier when lights are off and then a dehumidifier when lights are on?
Does your RH fluctuate that much?

PigKiller said:

So Kenny you run a humidifier when lights are off and then a dehumidifier when lights are on?

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Na the goal is to have it the other way around. Humidifier on only with lights, dehumidifier comes on when lights go off. But right now I still have humidifier set with lights timer, dehumidifier always on set at 75%. I plan on dropping humidity to ~60% later in flower.

Kenny Grows said:

Na the goal is to have it the other way around. Humidifier on only with lights, dehumidifier comes on when lights go off. But right now I still have humidifier set with lights timer, dehumidifier always on set at 75%. I plan on dropping humidity to ~60% later in flower.

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I see. Does your RH go up that much when dark you need a dehumidifier? RH seems to drop when the lights are off.
I,m in late flowering trying to keep my grow room RH at 55% with the RH outside at 93%. And rain. And I still haven't dried out from the flooding two weeks ago so my dehumidifier runs all the time.

Depending on your night time temps you might be able to let the humidity raise a little more. But I'm growing with LEDs so only if you use LEDs maybe. But after a hard defoliation I'm sitting at 55% humidity at night.

Kenny Grows said:

Depending on your night time temps you might be able to let the humidity raise a little more. But I'm growing with LEDs so only if you use LEDs maybe. But after a hard defoliation I'm sitting at 55% humidity at night.

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Wow, that is a big swing. It is a good RH for flowering though.