Model 00639W Temperature innacurate

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  • Updated 1 year ago
I have a Model 00639W with 3 in 1 sensor.  Temp is 6 or 7 degrees high during the day.  At night and mornings, it's fairly accurate.  I think it must have something to do with the amount of sunlight.  Sensor is mounted on a fence in the open with direct sunlight.  If I put it in an area without direct sunlight, the wind speed will not be accurate due to location.  Any suggestions or tips.
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Frederick McKenzie

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Posted 2 years ago

  • 2
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AcuRite Crystal

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Hi Frederick,

The following steps should help to resolve any issues you have been experiencing
with your unit.

Before proceeding with the reset, please check your
batteries. We recommend that the batteries meet the following criteria:


• Verify you are using standard alkaline batteries such as Rayovac or
Energizer. Lithium batteries can be used in the outdoor sensor if you are in a
location that will frequently see temperatures below -4oF/-20oC. (Rechargeable
batteries, as well as batteries that indicate a heavy-duty quality are not
recommended, and may cause irregularities.)
• Verify that you are using a
fresh set of batteries. The battery expiration date should be at least 6 years
out. Batteries can lose 3% of their power or more every year in storage.


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

2. Remove all batteries from both the sensor and the display
unit. (If the display has an AC adapter, please unplug this, as well, to
completely power down the unit.)

3. Locate the A-B-C ID switch inside
each battery compartment. Make sure that the two parts are set to the same
position. Please change both parts to the next available letter on the ID
switch, as this can help to reset the unit. (Inside the battery compartment, you
will see a small, white sticker with a 4-digit number. Please let us know this
number.)

4. Reinstall batteries in outdoor sensor first.

5.
Reinstall batteries (and/or reconnect AC adapter) to the display last.


6. Let both sensor and display sit side by side to establish connection.
(Leaving the devices side by side for 30 minutes will allow you to verify
accuracy by comparing the indoor and outdoor readings shown on the display. For
accuracy standards, please visit http://www.acurite.com/accuracy.)

7. After a
connection has been established, the sensor can be placed outdoors.


Should you require further assistance please contact our phone support
at the number listed below.
877-221-1252
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Frederick McKenzie

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I have replaced the standard alkaline batteries with new batteries.  No changes!  I have am using Energizer batteries also tried Duracell.  I have tried all three switch selections (A, B, C) with no changes. Display is less than 50 ft. from the outdoor sensor.  Reception is not a problem.  I have placed the sensor and display side by side each time I changed switch settings.  Temperature setting for indoor and outdoor are 2 - 3 degrees apart.  I have also pressed the factory reset button hoping this would help.  Outdoor temperature is still 6 - 7 degrees to high when the sun is shining on the sensor.  At times it could even be 10 degrees to high.  Have used other thermometers to verify inaccuracy.  I have tried to call the 877-221-1252 number but I get disconnects each time I try to call.  The QC # is QC-3515.  Need assistance please!    
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joe002

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My 3-in-1 works great at night and when it's in the shade.
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AcuRite Crystal

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Hi Joe002,

If you are still experiencing problems with your sensor, please contact AcuRite customer support at 877-221-1252.  Have a great day!
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AcuRite Crystal

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Hi Frederick,

We see that you spoke with one of our customer support representatives yesterday and will be sending your sensor in for warranty.  If you have any additional questions, please contact us further.  Have a great day!
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joe002

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Crystal,

Hi. I did talk with customer support - they were very nice/helpful. I'm thinking my issue is that out here in the AZ the sunlight is pretty intense and can affect daytime temps on the 3-in-1. I ended up building a DIY Stevenson Screen (Weather Box), put the 3-in-1 in it, and the numbers I'm getting are looking pretty good now.

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Clara Linenbrink

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Where can I buy a new Model 00639W
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AcuRite Jennifer

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Hello Clara,

Here is the link to the display. https://www.acurite.com/add-on-display-for-3-in-1-sensor-data-639rx.html

Here is the link to the sensor. https://www.acurite.com/3-in-1-sensor-temperature-humidity-wind-speed-3n1txc-06008rm.html

We do not have a package where the 2 are together. You would need to purchase each piece individually.