Humidity stuck at 99%. 3 in 1 with colour display.

  • 1
  • Problem
  • Updated 7 months ago
Recently I had noticed my outdoor sensor was not showing the correct temperature when it dropped below -20C. Also the humidity has been stuck at 99% since the summer. So I brought it inside and changed the batteries. Then nothing was transmitting from the outdoor sensor. After the 14th time the inside display finally hooked up. The Wind and temp seem to work but the humidity is still stuck at 99%. I have a 3 in 1 with colour display. Sensor is a 3N1TXCA2.
Photo of Michael Boucher

Michael Boucher

  • 1 Post
  • 0 Reply Likes

Posted 8 months ago

  • 1
Photo of AcuRite Jennifer

AcuRite Jennifer

  • 11801 Posts
  • 536 Reply Likes
Hello Michael,

We would recommend doing a hard reset on the weather station. Please follow the steps below. If this doesn't correct the issue and you have had the sensor less than 1 year we would initiate a warranty claim. If you have had it more than 1 year we would recommend replacing the sensor.

You want the display and sensor to be at least 3 feet from electronics such as televisions, microwaves, computers & radios. Follow the battery guidelines below:

•Verify you are using fresh alkaline batteries or lithium batteries (when temperature is below -4oF/-20oC) in sensor.

•Quality brand batteries are recommended, including Duracell, Rayovac, Energizer, or Kirkland.

•Verify batteries are fresh. The battery expiration date should be at least 6 years out. Batteries can lose 3% power or more every year in storage.

•Heavy duty, extra strength or generic / store brand batteries are not recommended for use with AcuRite products because they may cause performance irregularities due to the way these types of batteries disperse power. Each battery should not exceed 1.6 volts.

•Rechargeable batteries are not recommended for use with AcuRite products because they may cause performance irregularities due to the voltage instability of these types of batteries.

•Mixing different battery types (brands, old/new, etc.) is not recommended.

Perform a hard reset:


1.Bring both the sensor and display unit indoors side by side.

2.Remove batteries from the sensor.

3.Remove batteries from the display unit and unplug the AC adapter (if applicable).

4.Wait 2 minutes to ensure any remaining battery power is discharged from both units.

5.Change the A-B-C Channel on both the display and sensor making sure they both match.

6.Reinstall batteries in outdoor sensor first.

7.Reinstall batteries in display unit second.

8.Let the units sit within a couple feet of each other for 30 minutes when comparing for accuracy
* The display should receive the signal within several minutes.

9.After a connection has been established you may place the sensor outdoors.
*If the signal connection fails after the units are separated try a new or different location for the display unit, the sensor or both.