Shimano DURA-ACE Di2, Dealer'S Manual

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Symptoms Causes/possibilities Remedies
Gear shifting is not performed. Is the pairing correct? Perform system pairing with a wired or
wireless connection.
⇒
“ System pairing (wired) ”
⇒
“ System pairing (wireless) ”
Is there sufficient charge remaining in the
battery? Charge the battery and check again.
⇒
“ Charging method ”
Is the battery charging? Gear shifting is disabled when charging the
battery. Remove the charging cable and try
again.
Have 30 minutes or more elapsed from
the last gear shifting using the shift
switch wirelessly? Operate the shift switch to shift the gear
again.
Has the RD protection function operated? While turning the crank arm, operate the shift
switch so that the gear is shifted from the
largest sprocket to the smallest sprocket.
⇒
“ RD protection reset ”
Cannot charge. Is the electric wire connected securely? Connect the electric wire securely, and charge
the battery again. If charging is still not
performed, check whether the electric wire is
damaged.
Is the connection terminal of the electric
wire clean? Wipe the connection terminals clean with a dry
cloth, then charge again. If it still does not
charge, contact a distributor.
Is the system connected to E-TUBE
PROJECT? Disconnect E-TUBE PROJECT and connect the
charging cable again.
The battery may have reached the end of
its life. Replace the battery with a new one.
The LED does not light up when the
charging cable is connected. Is the battery fully charged? The rear derailleur LED lamp turns off when
the battery is fully charged, but this is normal.
Remove and reconnect the power plug of the
AC adapter, then charge again. If the rear
derailleur LED lamp still does not light up,
contact the distributor.
The rear derailleur and battery
become abnormally hot when
charging. The temperature of the battery and rear
derailleur may exceed the operating
temperature. When charging the battery, approximately
12°C above the ambient temperature is the
normal range. If the battery becomes
abnormally hot, stop charging and wait until
the battery and rear derailleur cool down, then
charge again. If the symptom still persists,
contact the distributor for assistance.
Troubleshooting
When a problem occurs
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