Comments on: Fixing the Altimeter on my Garmin Forerunner 910XT

By: Luis Portanel

Luis Portanel — Fri, 17 Jul 2020 18:26:49 +0000

I had the same problem on my Forerunner 935. Applied the warranty once, but the replacement had the same issue.

After cleaning using hot water, soap and a toothbrush the altimeter was fixed. It was magic.

I have had this problem for months and now it’s gone with a simple clean. Thank you very much!

By: bixGiallo

bixGiallo — Fri, 13 Jul 2018 11:43:52 +0000

Thanks a lot for this trick. It seems that my Garmin 310XT now is correctly tracking the altitude. I run twice the cleaning following the advices of ClickyPaws too and for now everything is fine.
Thanks to all comments and replies because I learnt a lot about the altimeter issue and more.

By: Justin

Justin — Mon, 09 Oct 2017 05:34:28 +0000

Think I can positively confirm that this error is probably more likely than not a clogged port most of the time. Have a Fenix 3HR and knew of this issue but hadnâ€™t experienced it in my 7 months of ownership, probably because I al ost never take it off, I use a nylon strap so I bathe with it on to also keep the strap from stinking and thusly likely cleaning the ports as a result. Today I applied sunblock on my arms on a hike and the next thing I knew I was at 65K. I reset several times and manually set elevation, no dice. Suspected a clogged port and tried to clean it out by water bottle and admittedly swishing the water on it with my mouth as well as some vacuum from sucking on the port. This changed the error, now I was trending at -3K. Gave up and finished the hike and washed it with handsoap and warm water on the ports, no toothbrush, for a couple minutes, and itâ€™s been back to normal and stable for 8 hours.
Thanks for running this site, I agree that itâ€™s crazy that Garmin is footing the bill for all these returns if a little bath is all it needs!

By: Brian

Brian — Mon, 25 Sep 2017 13:42:02 +0000

Hi Thanks for the information. I have just tried this as well and found that so far it appears to have worked. At least it now no longer appears that I am carrying out my runs somewhere up in the stratosphere

By: Anonymous

Anonymous — Sun, 24 Sep 2017 01:46:52 +0000

In reply to Alan. It worked thank you fx3

By: Mark

Mark — Mon, 18 Sep 2017 20:50:54 +0000

Hi,

I’ve just followed the process above – I didn’t have the patience to wait for the sun to come out so I used a hairdryer. I didn’t reset the watch either and the elevation is counting down from 20k. I’ll post back if it works on my next bike ride.

Thanks for the tip, really appreciate you sharing.

By: Alan Cole

Alan Cole — Sun, 08 Jan 2017 19:43:39 +0000

In reply to jstreetley.

Fingers crossed… Let us know how it goes.

Al.

By: jstreetley

jstreetley — Sun, 08 Jan 2017 19:41:24 +0000

Just giving mine a good soak in soapy water now after noticing my elevation was appearing as 65516 ft for the last few rides. Thanks for the top tips – I hope to report a success story tomorrow.

By: LizDunlop

LizDunlop — Tue, 13 Dec 2016 09:15:50 +0000

Just tried this on my 920xt.. and it has also worked.. wish I knew about this at the start of the year when my elevation went sky high.. just been making do and correcting it in strava.
Washed it out with soapy water and a brush and dried overnight.
Elevation is normal again..

By: Alejandro Guzman

Alejandro Guzman — Fri, 11 Nov 2016 01:27:50 +0000

Excellent!! Fixed my Fenix 3!! Thank you