Why Error Light on BMW Charger Comes On - BMW Luxury Touring Community
 
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post #1 of 5 Old Oct 4th, 2010, 6:03 pm Thread Starter
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Why Error Light on BMW Charger Comes On

I have a BMW charger for my GT and GSA which both have a canbus system. When I hook it up to either bike the power light comes on but also the red error light. When I hook up a friends charger to my bike it charges. Is there something that I can reset on the Charger or is it Kaput and I need to get a new one. There were no instructions with the charger, so I am a little lost here.
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post #2 of 5 Old Oct 4th, 2010, 8:40 pm
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Re: Why Error Light on BMW Charger Comes On

Are you sure its an error? Is it solid red or flashing red? Do you have a meter to see if it charging? The BMW charger will shut down to protect itself if it dosesn't see enough voltage on the battery. Check the plug sometimes I have to give it a twist to make good contact. I know there is some kind of canbus trick the've mentioned it other threads.

; RED LIGHT FLASHING The red light flashing indicates that the battery
charger has AC power available and that the microprocessor is functioning
properly. If the red light continues to flash, then either the battery voltage
is too low (less than 3 volts) or the output alligator clips or accessory ring
terminals are not connected correctly.

; RED LIGHT ON STEADY Whenever the red light is on steady, a battery
is connected properly and the charger is charging the battery. The red
light will remain on until the charger completes the charging stage.

; GREEN LIGHT FLASHING When the green light is flashing, the battery
is greater than 80% charged. For BT Plus models the red light will also be
on steady. (Note: Does not apply to the 8V Plus or the 6V Junior).

; GREEN LIGHT ON STEADY When the green light stops flashing and
burns steady, the charge is complete and the battery can be returned to
service if necessary.

; ALTERNATING RED & GREEN LIGHTS FLASHING (PLUS) or SINGLE
LIGHT ORANGE (JUNIOR) This is abnormal and most likely indicates
either that the battery is sulfated or that there is a poor electrical
connection between the charger DC output and the battery posts. For the
BT Plus models it may indicate a reverse polarity connection on the DC
output cables (the battery is hooked up backwards).

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Cleveland Ohio
2014 K1600 GTL Grey Wolf.

Last edited by mwnahas; Oct 4th, 2010 at 8:46 pm.
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post #3 of 5 Old Oct 4th, 2010, 11:32 pm
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Re: Why Error Light on BMW Charger Comes On

This happened to one of mine. I replaced it under warranty.
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post #4 of 5 Old Oct 5th, 2010, 6:07 pm Thread Starter
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Re: Why Error Light on BMW Charger Comes On

Quote:
Originally Posted by mwnahas
Are you sure its an error? Is it solid red or flashing red? Do you have a meter to see if it charging? The BMW charger will shut down to protect itself if it dosesn't see enough voltage on the battery. Check the plug sometimes I have to give it a twist to make good contact. I know there is some kind of canbus trick the've mentioned it other threads.

; RED LIGHT FLASHING The red light flashing indicates that the battery
charger has AC power available and that the microprocessor is functioning
properly. If the red light continues to flash, then either the battery voltage
is too low (less than 3 volts) or the output alligator clips or accessory ring
terminals are not connected correctly.

; RED LIGHT ON STEADY Whenever the red light is on steady, a battery
is connected properly and the charger is charging the battery. The red
light will remain on until the charger completes the charging stage.

; GREEN LIGHT FLASHING When the green light is flashing, the battery
is greater than 80% charged. For BT Plus models the red light will also be
on steady. (Note: Does not apply to the 8V Plus or the 6V Junior).

; GREEN LIGHT ON STEADY When the green light stops flashing and
burns steady, the charge is complete and the battery can be returned to
service if necessary.

; ALTERNATING RED & GREEN LIGHTS FLASHING (PLUS) or SINGLE
LIGHT ORANGE (JUNIOR) This is abnormal and most likely indicates
either that the battery is sulfated or that there is a poor electrical
connection between the charger DC output and the battery posts. For the
BT Plus models it may indicate a reverse polarity connection on the DC
output cables (the battery is hooked up backwards).
It is a solid red light which on my charger says error, but according to the info you sent it simply means that it is charging. Thanks very much. I will see if the light changes.
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post #5 of 5 Old Oct 6th, 2010, 5:15 pm
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Re: Why Error Light on BMW Charger Comes On

Mine is doing something nearly as weird. I'v always known the red light will be solid until the green light becomes solid. Recently the red light stays on and the green light nearly immediately begins to flash and NEVER goes solid. My battery is about 9 months old. It used to show solid red when first hooked up and then later red & flashing green and even later just solid green. But no more. It does the same thing on my riding mower where it used to also do the same as the bike. My BMW charger is over a year old so I'm assuming it's long out of warranty.

Chris Ehlbeck
2002 BMW K1200LTE Toscana Green Retired with 85,391 miles
2014 BMW R1200RT Quartz Blue Metallic

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