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Garmin 305 heart rate monitor is not working. I've done a reset, paired the hrm through "accessories", cleaned out the battery holder, replaced the battery. I've used the hrm 5 days a week for 18 months so it is out of warranty. Do I need to replace the hrm?

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Make sure the prong for the HRM battery is making contact......

Posted on Nov 13, 2009

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1 Answer

Battery change, now no signal


I found this on the internet......

In the battery compartment there’s a gold contact that touches the top of the battery (+ve) which was in a position that would never make contact with the battery. I bent it out slightly, made sure the battery was seated correctly (i.e. flat) and as if by magic my heart rate appeared on the large Garmin display!


Also found this..........

I Have had the same problem couple of times (and forgotten each time how I solved it). I figured it out just now and this is what I did.

1) turn on unit and put on heart monitor (make sure battery is good and wet heart strap)
2) using the mode button navigate the menus to: Settings: General: Accessories: Heart Rate Monitor
3) Once in the Heart Rate Monitor option make sure "Yes" is selected and then use the arrow buttons to highlight "Restart Scan" . Press the enter button to rescan for your heart monitor. (I had to rescan twice)
Go back to the main monitor screen to see if you are recieving heart rate signals.

I am not sure why a manual rescan needs to be done every time but it would be nice if Garmin fixed this issues in a unit software update (my unit has software version 2.80



May 24, 2010 | Garmin Forerunner 305 GPS Receiver

1 Answer

I haven't used my Garmin Forerunner 305 for over a year - but have just started using it again. It wasn't picking up my heart rate from the HRM, so I changed the battery in the HRM but it is still not...


I found this on the internet......

In the battery compartment there’s a gold contact that touches the top of the battery (+ve) which was in a position that would never make contact with the battery. I bent it out slightly, made sure the battery was seated correctly (i.e. flat) and as if by magic my heart rate appeared on the large Garmin display!


Also found this..........

I Have had the same problem couple of times (and forgotten each time how I solved it). I figured it out just now and this is what I did.

1) turn on unit and put on heart monitor (make sure battery is good and wet heart strap)
2) using the mode button navigate the menus to: Settings: General: Accessories: Heart Rate Monitor
3) Once in the Heart Rate Monitor option make sure "Yes" is selected and then use the arrow buttons to highlight "Restart Scan" . Press the enter button to rescan for your heart monitor. (I had to rescan twice)
Go back to the main monitor screen to see if you are recieving heart rate signals.

I am not sure why a manual rescan needs to be done every time but it would be nice if Garmin fixed this issues in a unit software update (my unit has software version 2.80


Hope this helps......

Feb 09, 2010 | Garmin Forerunner 305 GPS Receiver

1 Answer

Wont find heartrate


I found this on the internet......

In the battery compartment there’s a gold contact that touches the top of the battery (+ve) which was in a position that would never make contact with the battery. I bent it out slightly, made sure the battery was seated correctly (i.e. flat) and as if by magic my heart rate appeared on the large Garmin display!


Also found this..........

I Have had the same problem couple of times (and forgotten each time how I solved it). I figured it out just now and this is what I did.

1) turn on unit and put on heart monitor (make sure battery is good and wet heart strap)
2) using the mode button navigate the menus to: Settings: General: Accessories: Heart Rate Monitor
3) Once in the Heart Rate Monitor option make sure "Yes" is selected and then use the arrow buttons to highlight "Restart Scan" . Press the enter button to rescan for your heart monitor. (I had to rescan twice)
Go back to the main monitor screen to see if you are recieving heart rate signals.

I am not sure why a manual rescan needs to be done every time but it would be nice if Garmin fixed this issues in a unit software update (my unit has software version 2.80


Hope this helps......

Feb 04, 2010 | Garmin Forerunner 305 GPS Receiver

1 Answer

Heart rate not being received after changing battery.


I found this on the internet......

In the battery compartment there’s a gold contact that touches the top of the battery (+ve) which was in a position that would never make contact with the battery. I bent it out slightly, made sure the battery was seated correctly (i.e. flat) and as if by magic my heart rate appeared on the large Garmin display!


Also found this..........

I Have had the same problem couple of times (and forgotten each time how I solved it). I figured it out just now and this is what I did.

1) turn on unit and put on heart monitor (make sure battery is good and wet heart strap)
2) using the mode button navigate the menus to: Settings: General: Accessories: Heart Rate Monitor
3) Once in the Heart Rate Monitor option make sure "Yes" is selected and then use the arrow buttons to highlight "Restart Scan" . Press the enter button to rescan for your heart monitor. (I had to rescan twice)
Go back to the main monitor screen to see if you are recieving heart rate signals.

I am not sure why a manual rescan needs to be done every time but it would be nice if Garmin fixed this issues in a unit software update (my unit has software version 2.80


Hope this helps......

Jan 17, 2010 | Garmin Forerunner 305 GPS Receiver

1 Answer

My garmin forerunner 305 HRM suddenly stopped working. I thought it was a bad battery so replaced that, and still nothing. Any other suggestions?


I found this on the internet......

In the battery compartment there’s a gold contact that touches the top of the battery (+ve) which was in a position that would never make contact with the battery. I bent it out slightly, made sure the battery was seated correctly (i.e. flat) and as if by magic my heart rate appeared on the large Garmin display!


Also found this..........

I Have had the same problem couple of times (and forgotten each time how I solved it). I figured it out just now and this is what I did.

1) turn on unit and put on heart monitor (make sure battery is good and wet heart strap)
2) using the mode button navigate the menus to: Settings: General: Accessories: Heart Rate Monitor
3) Once in the Heart Rate Monitor option make sure "Yes" is selected and then use the arrow buttons to highlight "Restart Scan" . Press the enter button to rescan for your heart monitor. (I had to rescan twice)
Go back to the main monitor screen to see if you are recieving heart rate signals.

I am not sure why a manual rescan needs to be done every time but it would be nice if Garmin fixed this issues in a unit software update (my unit has software version 2.80

Nov 01, 2009 | Garmin Forerunner 305 GPS Receiver

1 Answer

Garmin Edge 305 HRM problem


Try to pair his unit with your strap and it won't work, you have a bad strapl

Feb 16, 2009 | Garmin Edge 305 GPS Receiver

1 Answer

Garmin 405 pair to wrong HRM


I Have had the same problem couple of times (and forgotten each time how I solved it). I figured it out just now and this is what I did.

1) turn on unit and put on heart monitor (make sure battery is good and wet heart strap)
2) using the mode button navigate the menus to: Settings: General: Accessories: Heart Rate Monitor
3) Once in the Heart Rate Monitor option make sure "Yes" is selected and then use the arrow buttons to highlight "Restart Scan" . Press the enter button to rescan for your heart monitor. (I had to rescan twice)
Go back to the main monitor screen to see if you are recieving heart rate signals.

I am not sure why a manual rescan needs to be done every time but it would be nice if Garmin fixed this issues in a unit software update (my unit has software version 2.80)

Jan 04, 2009 | GPS Devices

1 Answer

Pulse meter died on forerunner 305


You may need to re pair the unit with the heart rate monitor. Settings/ General/ Accessories/ Heat rate monitor. RESTART SCAN. OR follow this link (Hope it works) https://buy.garmin.com/shop/store/manual.jsp?product=010-00467-00&cID=142&pID=349 Go here and click on owners manual. Go to page 46. Adding accessories.

Jun 15, 2008 | Garmin Forerunner 305 GPS Receiver

5 Answers

Garmin edge 305 heart rate sensor does not work


the rescan worked for me, didn't know it existed, briljant. Follow list below:settings/system/accessoires/rescan
I love google today;o)

Mar 21, 2008 | Garmin Edge 305 GPS Receiver

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