# Help with ventilation **URL:** \ **Category:** Troubleshooting\ **Tags:** flowering, indoor-grow\ **Created:** [January 5, 2022, 11:47pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777 "2022-01-05T23:47:07Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 5, 2022, 11:47pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777/1 "2022-01-05T23:47:07Z")
Hey guys I’m having issues with my temp at the moment I have a smart controller with the sensor in my tent and it’s saying that it’s 89F inside the tent. This is unusual because usually it runs cooler I’m running 4inch active intake and a 6inch exhaust.ill post a photo below. The unusual thing is I’m pulling air from a different room that is almost 10c cooler then the tent. I have a humidifier running 24/7 to keep the humidity down aswell ![IMG_20220106_104239](https://global.discourse-cdn.com/growingmarijuana/original/4X/b/d/5/bd5a269fecafa4384a31a11239d8ed637d7af806.jpeg) ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [January 5, 2022, 11:52pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777/2 "2022-01-05T23:52:41Z")
Where is the dehumidifier located? ---
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 5, 2022, 11:53pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777/3 "2022-01-05T23:53:59Z")
It’s located on the opposite side of the tent near the passive intake port on the other side ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [January 5, 2022, 11:54pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777/4 "2022-01-05T23:54:24Z")
Running it 24/7 makes for a good heat source ---
**Author:** ![Pinboy](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/pinboy/32/433479_2.png) [@Pinboy](https://ilgmforum.com/u/Pinboy)\ **Post date:** [January 5, 2022, 11:54pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777/5 "2022-01-05T23:54:41Z")
Have you double checked the tent with a good thermometer? ---
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 5, 2022, 11:55pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777/6 "2022-01-05T23:55:34Z")
Yeah the unit is actually quite hot I have turned it off but the temp is still high ---
**Author:** ![Pinboy](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/pinboy/32/433479_2.png) [@Pinboy](https://ilgmforum.com/u/Pinboy)\ **Post date:** [January 5, 2022, 11:57pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777/7 "2022-01-05T23:57:54Z")
Can you move the dehumidifier to the other room where your active intake is drawing from? ---
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 5, 2022, 11:58pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777/8 "2022-01-05T23:58:12Z")
O have a infrared thermometer that is saying it’s 80F ---
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 5, 2022, 11:59pm UTC](https://ilgmforum.com/t/help-with-ventilation/80777/9 "2022-01-05T23:59:26Z")
Unfortunately I don’t think I can ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [January 6, 2022, 12:00am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/10 "2022-01-06T00:00:42Z")
Is it an ac infinity controller? Where is the probe positioned in the tent? ---
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 6, 2022, 12:01am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/11 "2022-01-06T00:01:41Z")
It’s a Mars hydro controller and the probe is sitting in the canopy of the plant ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [January 6, 2022, 12:03am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/12 "2022-01-06T00:03:27Z")
Sounds good. I would add a couple hygrometers in there and see if they agree with the controller. If those probes get even a little wet their readings are way off. ---
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 6, 2022, 12:11am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/14 "2022-01-06T00:11:14Z")
There is a second temp/hygro in there and it’s saying 80F I think the probe may be playing up. Mahnr when the plant is transpiring the probe got wet idk lol ---
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 6, 2022, 12:19am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/15 "2022-01-06T00:19:54Z")
Idk if they sell spare temp probes for the Mars hydro but this one should come good shouldn’t it? ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [January 6, 2022, 12:48am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/16 "2022-01-06T00:48:30Z")
Typically needs calibration. Not sure how to do that with mars hydro controllers. ---
**Author:** ![Bluntsmoke](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bluntsmoke/32/1186531_2.png) [@Bluntsmoke](https://ilgmforum.com/u/Bluntsmoke)\ **Post date:** [January 6, 2022, 2:49am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/17 "2022-01-06T02:49:47Z")
In the canopy? Should be just above. I get all kinds of false humidity and temperature readings on my ac infinity if my probe isn’t in the correct location. Shouldn’t be touching anything but air like this ![IMG_20220105_184542140_HDR](https://global.discourse-cdn.com/growingmarijuana/original/4X/7/9/c/79c91ac77d5eb2d7caf4a73ef52689930c4ba03c.jpeg) ---
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 6, 2022, 10:08am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/18 "2022-01-06T10:08:12Z")
Thanks for the tip I’ll fix it up ---
**Author:** ![Danielsan22](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@Danielsan22](https://ilgmforum.com/u/Danielsan22)\ **Post date:** [January 6, 2022, 10:52am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/19 "2022-01-06T10:52:04Z")
I tried this and hasn’t changed the temp coming from the sensor lol ---
**Author:** ![Mark0427](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/mark0427/32/598165_2.png) [@Mark0427](https://ilgmforum.com/u/Mark0427)\ **Post date:** [January 6, 2022, 11:30am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/20 "2022-01-06T11:30:43Z")
What kinda light is inside that bad baby. ---
**Author:** ![Mark0427](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/mark0427/32/598165_2.png) [@Mark0427](https://ilgmforum.com/u/Mark0427)\ **Post date:** [January 6, 2022, 11:33am UTC](https://ilgmforum.com/t/help-with-ventilation/80777/21 "2022-01-06T11:33:31Z")
From pic seems led lights. Is the driver mounted on the light and if so can it be taken off light and mounted outside the tent. U’ll have to extend the wire from the lights panels to the driver but taking driver out of the tent will reduce the heat by prolly 5° or so [Next page](https://ilgmforum.com/t/help-with-ventilation/80777.md?page=2)