# Purple air temperature jumped 15 degrees F **URL:** \ **Category:** Troubleshooting\ **Created:** [March 16, 2023, 3:18pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923 "2023-03-16T15:18:32Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Garth\_Webb](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/garth_webb/32/2190_2.png) [@Garth\_Webb](https://community.purpleair.com/u/Garth_Webb)\ **Post date:** [March 16, 2023, 3:18pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/1 "2023-03-16T15:18:32Z")
I noticed that our Purple Air’s temperature reading looked off this morning at 48 F. I checked it against another digital sensor located next to it, which read 33 F. I also looked at two nearby Purple Air sensors, less than 1/2 mi away and they both read 33F. ![Screenshot 2023-03-16 at 8.02.14 AM](https://us1.discourse-cdn.com/flex020/uploads/purpleair/original/2X/7/727d7512356fcdec3febfa8ace737a56906b9feb.jpeg) Looking at the graph of temperature over time for our sensor, I can see that the temp was falling, reached around 45F, jumped up by 15 deg F within one sample period, then kept falling. ![Screenshot 2023-03-16 at 8.02.51 AM](https://us1.discourse-cdn.com/flex020/uploads/purpleair/original/2X/5/5cbb4158e23b0b45041e311813005e8b404fc60b.png) This looks a lot like some kind of error that changed an internal offset, vs some kind of artificial warming of the unit. If I add the two nearby sensors to the graph, you can see that our sensor follows the same curve they do, just offset by 15 deg. ![Screenshot 2023-03-16 at 8.14.42 AM](https://us1.discourse-cdn.com/flex020/uploads/purpleair/original/2X/a/a1b5579dcac06d7d98fa79cec4b9a184bb18eca8.png) I’ve power cycled the unit and it still doesn’t show the correct temperature. Any thoughts? ---
**Author:** ![miguel](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/miguel/32/2195_2.png) [@miguel](https://community.purpleair.com/u/miguel)\ **Post date:** [March 16, 2023, 6:29pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/2 "2023-03-16T18:29:21Z")
I’m seeing the same issue. One of my monitors had that jump in temperature and a drop in humidity, it looks like the adjusted values doubled. I guess this could have been due to some update? ![Screenshot 2023-03-16 at 11.28.07 AM](https://us1.discourse-cdn.com/flex020/uploads/purpleair/original/2X/1/13dd4bd88db1d8b5cbdfbd6cb8e925ed199d1245.png) ---
**Author:** ![williamvv](https://avatars.discourse-cdn.com/v4/letter/w/ee59a6/32.png) [@williamvv](https://community.purpleair.com/u/williamvv)\ **Post date:** [March 17, 2023, 8:08pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/3 "2023-03-17T20:08:54Z")
Same issue for me. Only one of my three sensors is effected. Temperature and humidity lept to new levels about the same time as those reported above. ---
**Author:** ![Andrew](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/andrew/32/1211_2.png) [@Andrew](https://community.purpleair.com/u/Andrew)\ **Post date:** [March 21, 2023, 9:41pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/4 "2023-03-21T21:41:30Z")
@Garth_Webb @miguel @williamvv We’d like to look into this. Please email us at [contact@purpleair.com](mailto:contact@purpleair.com) with your sensor’s device ID and details on the issue you’re seeing. ---
**Author:** ![williamvv](https://avatars.discourse-cdn.com/v4/letter/w/ee59a6/32.png) [@williamvv](https://community.purpleair.com/u/williamvv)\ **Post date:** [March 22, 2023, 12:10am UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/5 "2023-03-22T00:10:52Z")
I just sent an email with two screenshots. Let me know what you need further. ---
**Author:** ![John\_PurpleAir](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/john_purpleair/32/1557_2.png) [@John\_PurpleAir](https://community.purpleair.com/u/John_PurpleAir)\ **Post date:** [March 22, 2023, 10:25pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/6 "2023-03-22T22:25:10Z")
Thank you all for sharing this with us. We are looking into this now and will update you as soon as we have identified the issue and a solution. ---
**Author:** ![jim](https://avatars.discourse-cdn.com/v4/letter/j/ac91a4/32.png) [@jim](https://community.purpleair.com/u/jim)\ **Post date:** [March 23, 2023, 9:22pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/7 "2023-03-23T21:22:25Z")
mine did the same, increase in temp by about 8 degrees (which is the amount the unit is supposed to adjust for due to the internal heat). I think it correlated with firmware upgrade to 7.03. Anyone else see that? ---
**Author:** ![toddrising](https://avatars.discourse-cdn.com/v4/letter/t/90ced4/32.png) [@toddrising](https://community.purpleair.com/u/toddrising)\ **Post date:** [March 24, 2023, 8:09pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/8 "2023-03-24T20:09:57Z")
Just wanted to piggyback on this issue — I just installed new outdoor and indoor monitors and both are hovering 10° or more higher than actual temps. Our indoor temp, for example, is controlled at 63° (currently measured at 62° with another thermometer at the PA monitor’s location), yet this monitor’s temp sensor is logging 76°at the moment on PA’s map. Similarly for our outdoor sensor. Looking at surround PA sensors in our area, some are registering what would seem to be more accurate outdoor temps (40s) while others are also registering significantly higher temps (60s). ---
**Author:** ![miguel](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/miguel/32/2195_2.png) [@miguel](https://community.purpleair.com/u/miguel)\ **Post date:** [March 28, 2023, 3:40am UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/9 "2023-03-28T03:40:41Z")
I’ve sent you an email but i haven’t received a response ---
**Author:** ![miguel](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/miguel/32/2195_2.png) [@miguel](https://community.purpleair.com/u/miguel)\ **Post date:** [March 28, 2023, 3:43am UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/10 "2023-03-28T03:43:25Z")
Well, turns out the email you shared goes to a mattress startup 😅 ---
**Author:** ![williamvv](https://avatars.discourse-cdn.com/v4/letter/w/ee59a6/32.png) [@williamvv](https://community.purpleair.com/u/williamvv)\ **Post date:** [March 28, 2023, 10:46am UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/11 "2023-03-28T10:46:21Z")
I emailed to [contact@purple.com](mailto:contact@purple.com) and got no reply. ---
**Author:** ![Andrew](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/andrew/32/1211_2.png) [@Andrew](https://community.purpleair.com/u/Andrew)\ **Post date:** [March 28, 2023, 4:56pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/12 "2023-03-28T16:56:17Z")
My mistake! It’s corrected now 😅 ---
**Author:** ![williamvv](https://avatars.discourse-cdn.com/v4/letter/w/ee59a6/32.png) [@williamvv](https://community.purpleair.com/u/williamvv)\ **Post date:** [March 28, 2023, 5:50pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/13 "2023-03-28T17:50:10Z")
So, to any and all PurpleAir employees, why did some sensors leap up 8-15 F on March 16? Is there a workaround to calibrate these sensors to match all the other PurpleAir sensors? I have three sensors, and they DO NOT agree with each other. Please help! William ---
**Author:** ![Andrew](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/andrew/32/1211_2.png) [@Andrew](https://community.purpleair.com/u/Andrew)\ **Post date:** [March 28, 2023, 8:04pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/14 "2023-03-28T20:04:07Z")
Hi William, sorry for the mistake in my earlier comment. The email address was incorrect (I’ve edited and corrected it). You will want to use the email [contact@purpleair.com](mailto:contact@purpleair.com). Rest assured that we’re looking into this. ---
**Author:** ![williamvv](https://avatars.discourse-cdn.com/v4/letter/w/ee59a6/32.png) [@williamvv](https://community.purpleair.com/u/williamvv)\ **Post date:** [March 28, 2023, 9:07pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/15 "2023-03-28T21:07:02Z")
Andrew, Did you get my email to [contact@purple.com](mailto:contact@purple.com) sent March 21, 2023 at 5:10 pm PDT? Here is what it said: Hi, At your request, I am attaching two screenshots showing how on about March 16, the temperature jumped up about 12 degrees F, and the humidity dropped by a significant amount at the same time. This issue has persisted. My other sensors are unaffected. Device address: [removed for privacy reasons] Please let me know if there is a fix for this. And let me know if I can help further. Thanks, William ![Screenshot 2023-03-21 at 5.06.19 PM.png](https://us1.discourse-cdn.com/flex020/uploads/purpleair/original/2X/7/7a80562c833fa441ff448bad57c883d80b8fbb8a.png) ![Screenshot 2023-03-21 at 5.06.00 PM.png](https://us1.discourse-cdn.com/flex020/uploads/purpleair/original/2X/c/cc6dceeeb15b3537fc9ac0174807fd6063ce856a.png) ---
**Author:** ![Andrew](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/andrew/32/1211_2.png) [@Andrew](https://community.purpleair.com/u/Andrew)\ **Post date:** [March 28, 2023, 10:47pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/16 "2023-03-28T22:47:07Z")
Hi William. No, we didn’t receive it. Please change the email address from [contact@purple.com](mailto:contact@purple.com) to [contact@purpleair.com](mailto:contact@purpleair.com) and resend the email. ---
**Author:** ![williamvv](https://avatars.discourse-cdn.com/v4/letter/w/ee59a6/32.png) [@williamvv](https://community.purpleair.com/u/williamvv)\ **Post date:** [March 28, 2023, 11:01pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/17 "2023-03-28T23:01:12Z")
OK, will do. I quoted it above, but if you can’t read it, look at [contact@purpleair.com](mailto:contact@purpleair.com) ---
**Author:** ![Andrew](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/andrew/32/1211_2.png) [@Andrew](https://community.purpleair.com/u/Andrew)\ **Post date:** [April 7, 2023, 8:22pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/18 "2023-04-07T20:22:32Z")
Providing an update on this issue. It is an issue with the driver change from BSEC to BSEC2 in firmware 7.03. Non-VOC sensors are unaffected (BME280, which is present in the PA Classic), whereas VOC sensors are affected (BME680/BME688, which are present in PA Touch, PA Flex, and PA Zen). This driver update was done as part of our improvement to the VOC readings on the sensors. As an aside, we are curious to know if any of our users are noticing an improvement in the VOC readings. Nevertheless, we wanted to provide further details. We are looking into the source of the problem and expect to release a new version of firmware when we have found a solution. ---
**Author:** ![Andrew](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/andrew/32/1211_2.png) [@Andrew](https://community.purpleair.com/u/Andrew)\ **Post date:** [April 12, 2023, 10:09pm UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/19 "2023-04-12T22:09:18Z")
We have identified the source of the issue. We will be rolling out firmware 7.04 soon, which will resolve the issue with the temperature and humidity readings. Thank you for your patience with us. ---
**Author:** ![flavi85](https://avatars.discourse-cdn.com/v4/letter/f/a6a055/32.png) [@flavi85](https://community.purpleair.com/u/flavi85)\ **Post date:** [April 17, 2023, 11:08am UTC](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923/21 "2023-04-17T11:08:10Z")
Hello, Not fixed yet, i have a pa-II-flex (just bought) and the latest version - v.7.04 Compared with my 3 weather stations (two with digital sensors & one mechanical type) see below some compared vaues for temp & humidity Right now: Pa-II-flex: Temp : 15°C, Humidity:49% Bresser, netatmo,Fischer: Temp : 10°C, Humidity 81% As you can see the readings are far away from the real/actual values. Take into account that my Fischer mechanical ws is positioned exactly near the pa-II-flex sensor. Thank you! [Next page](https://community.purpleair.com/t/purple-air-temperature-jumped-15-degrees-f/3923.md?page=2)