Pulse Ox not working + Heart Rate not working when Pulse Ox is turned on

Good to hear people have had new units sent to them as replacements.

I returned mine to Wiggle a month ago and finally got the refund today. The reason I did not exchange it with Garmin was that since when I originally called their support they had not heard about this issue at all (and hence I created this thread). They said it seemed to be faulty but that I'd need to send it in for repairs. The estimate was that it would take 3 weeks however, which is quite different from "got a new one sent to me overnight by Garmin". So it was easier to just return it as faulty and use something else.

This is the experience I've had from Garmin, said they haven't heard of the issue before and I only spoke to them yesterday.

Have you since bought another 945 and got a working one?  or have you not bothered

I'm waiting for a new one I've ordered from wiggle to turn up and will send back this faulty one today, but its worrying that they took a month to refund you, they told me max 14 days is there standard policy for a refund. 

I also find Wiggle customer service shocking that you can only speak to them online chat which is always busy or email them and that they don't have a phone number 

Hey Ben!

I did not want to exchange it for a new one at first because I thought there would be a high chance of getting one from the same broken batch from Wiggle. After this I was going to buy the Fenix 6, but as I suspected, people have reported the same issue with it since it uses the same sensor hardware. So don't want to roll my dice on what hardware revision will arrive. I'll either wait half a year for faulty stock to clear out or just go with the cheapest vivosport or forerunner 30 or just keep running with my Edge 830 in one hand...

As for Wiggle, I was unable to even open their chat with Chromium or Chrome, but it worked on Firefox. I simply told them of the issue and asked if they have heard similar reports from others, that I've been already in contact with Garmin and they have deemed it faulty based on the description and video, and their first suggestion is returning it since repairs are estimated to take three weeks. They replied saying they don't know about other problems but sadly it seems the product is faulty and to arrange a return from the order page. As for it taking a month... the order page showed "we will process your return once it arrives" for 10 extra days after tracking showed it had been delivered so I contacted them again. They said it had actually arrived and there is just a delay in processing.

Quite a shame if Garmin has not acknowledged the issue for you. For me they actually contacted me back a couple of weeks later saying that they have now had multiple reports but don't know the cause yet and if I could share my account so they could gather extra info. Well, at least you can solve this directly with Wiggle!

OK update from me.  I ordered another 945 from Wiggle which arrived today, another Revision C model but looking at the serial numbers a slightly older one.

First turned it on and it wouldn't connect to the Garmin connect app on my phone so i set it up manually. Tested the PulseOx sensor and it works and heart rate works and everything else works as well!  Connected it to the connect app and synced everything, updated the watch from my computer and everything is good! 

So it doesnt seem that its just rev D models, but also some Rev C models work as well.

Been a right pain in the *** and I've still got to send the old one back to Wiggle, but at least i've now got a working one!

I have now returned mine to Wiggle and received my money back albeit after chasing. Wiggles Chat would not work on Edge or Chrome so I just went through the return procedure for faulty items. Garmin were no help. They first denied knowing of any issues and I went through a couple of weeks of answering questions and sending requested info and file information from the watch. Their last e-mail said they had raised a ticket and asked me to be patient. That was a few weeks ago and I haven't heard anything since. Hence the return. I am now unsure of whether to buy another watch as I am nervous of having the same issues. I do however miss it and the information it provided. I am back running with my old Vivoactive HR which doesn't miss a beat. Is a new Garmin watch really worth the aggro?

I've just given up on Garmin watches as had to return 5! 

https://greghilton.co.uk/moving-from-garmin-to-apple-watch/

I just received from Wiggle and Pulse Ox is not working, and when day monitoring is turned on, HR stops... just as others have mentioned.  I contacted Wiggle and they it sent in to "check" - so I contacted Garmin, to see if I could get forward replacement, and they just said they would add to the list of devices they're "investigating".

So I think I will just return and get my money back. Disappointing. 

Explained the situation with failed Pulse OX to the Garmin support via email. After a week of email threads I've got the replacement device shipped to me. On a new one Pulse OX worked well with 2.7 software version and when updated to 2.8 Pulse OX + HR still working together (testing in all day mode). Will try the new device for 2 days and ship defective one to Garmin if everything will be OK.

Long story short, got nowhere with Garmin nor Wiggle. Returned to Wiggle. Got new one from clever training. Had to wait for new stock to arrive (two weeks, grrrrh), but is rev D and works perfectly.  No issues with Pulse Ox.