Heat mat issues (advice/help needed)

[Stigofthedank]

Hi all I am a new owner of some lerway thermo controlled cheap root mats with probes, controller.

I am currently having issues with one of the mats, put a few test thermostats on it and it's saying 27°c and the "controller" is satin 19°c and won't move up or down, other one is doing as said, 22°c mat same controller and thermostat,.

 

My 1st thought was the probes were at different heights so adjusted that and same again last night cycle, I have now put the probe of the problamatic heat mat below fabric pot to see if that makes a difference, it's probably some product default and replacement is probably in order, any advice or help would be appreciated 

 

Hope you lovely uk420 community are having a bless day, 

Stig 

[mikeydoughnut]

Sometimes your light can add heat at pot level early on until the canopy catches it this can obviously put temps higher than set on the thermostat. Does Sounds like a dodgy thermostat though if it’s reading 19. A plugged in mat will go about 10 degrees higher than ambient so by the sounds the mats are fine but the controller is a bit buggered. 
 

I think that’s what yer were getting at. I’m having a confused day so far. when yer know you should go back to bed and start again but yer can’t 

[RUFUS HOUND]

If your running a heat mat with a temperature controler with  probe, the probe wants to be buried in the pot almost down to the bottom.

 

make sure the soil is damp, it will take a good 1/2 day for it to warm it through. 

my heat mat has different temps over it, higher directly over heating cable - to even it out, I have a big floor tile on top of it which spreads te heat better.

 

anyway of swapping the controllers over from the working one ?

I would recommend getting an infrared temperature gun if you can, it makes spot checking temps easy peasy

Edited April 3, 2023 by RUFUS HOUND

[Shumroom]

Have you checked the sensors by holding them in your hand,

this should show as an increase in temperature 

 

Atb