ITC-306A bad probe?

I have a new ITC-306A. I set it up a few days ago and it seemed to be working until last night.

Now, I am getting E4 errors and bogus high temperature readings. It constantly reads around 96F, even though the water temperature is about 67F.


If I take the probes out and hold them in my hand to warm them up, it seems to fix the problem momentarily. The reading comes back down to around 68F. But after about a minute I get an E4 alarm, then the display changes back to 96F. This happens whether they are in the water or sitting out in the air.

Are there any other troubleshooting steps I can take or is one of the probes just defective and reading 96F all the time? Is there a way to see the two different probe readings and not just the higher one?

Hello,
Sorry, the ITC-306A will only show one reading.
Just to confirm, are the two probes of the ITC-306A placed side by side?
If the two probes are cleaned and dried, and tested side by side in air, does it still read incorrectly?
If yes, please provide your order information and photos of the problem ITC-306A to email support@inkbird.com.
Since forum posts are public, these may involve private information, please do not reply here.
Thanks.

@Tania Found this thread searching for this same error. The probes read high in the tank (92f) then if I take them out and hold them in my hand the temperature increases until a certain point, APP shows on the display and it starts reading the right temperatures. Then if I place them back in the tank the temperature decreases for a bit, E4 shows on display and a brief alarm happens, then the reading jumps up 30f . I have tried move the probes next to eachother and through out the tank but nothing improves it.

Hello,
Just to confirm some details, when the probes are in the tank, are they in a place where the water is moving a lot? If the water is moving a lot, it may be unstable in temperature. Maybe you can try putting them in a relatively calm environment?
If it still has problems, please email support@inkbird.com with your order information and a picture of this problem for after-sales service.
They will diagnose the problem and provide you with a solution.
Since forum posts are public, these may involve private information, please do not reply here.
Thanks.