Hi all. Im happy i came across this thread and hope its still active.
Riding a Giant E+1 for about 6 months and have been caught in some heavy rain early on without having any issues. And again recently, or so i thought.
Last 2 days i get an A5 error randomly, controlls dont work, wont turn off and it wants to cycle off on its own without me pressing the walk button. If im already in sport mode then i wont notice until i stop. Power management is unaffected while cycling.
I have noticed some water residue in the battery holder but never on the contacts. I will try the advice provided and let you know how it goes. I hope i dont have to return part of the bike because ill have better luck touching the sun than i will finding my warrenty papers.
Same experience as myself. Heavy downpour - battery would not power off at all - remove battery completely and then when you reinstall, the system powered up without pressing the on/off button. Also, unbeknown to me initially, the walk mode was activating itself whilst I was riding - in doing so it would lock up the other power modes so you could not change from the power mode currently selected. Only twigged this when i got off the bike and it started off on its own under walk mode without me pressing any buttons at all. Pressing the walk mode button once whilst riding seemed to free up the other mode selectors. Dealer suggested pulling power cables apart and leaving to dry out, but found that after about a week the problem disappeared - must have dried out naturally I suppose. Have asked my dealer if Giant make a little umbrella that can be positioned over the vulnerable bits but have not had a reply. I now study at least three separate weather forecasts before setting out in an attempt to miss the worst of any rain.
As an aside, and never having had a bike with disc brakes before, after approx. 600 miles on UK Cornwall country roads , front brakes started grinding and then making a horrendous howling noise. Read all the stuff about cleaning everything and re-cantering the pads, but with no improvement. Culminated a week or so ago when coming round a bend in a country lane to find a lady on a horse in front of me. Pulled on the brakes hard, cue horrendous howling noise. The horse bolted, cue very unladylike language from rider as she disappeared into the distance. Decided I had better get the dealer to sort out the brakes on the grounds of everybody's safety.
Dealer has informed me that I have worn the front pads down to the metal, and the rear to their minimum and will need a new front disc rotor as well. As a bonus, dealer also tells me that the chain ought to be replaced due to wear. Ok, my own fault I suppose, should have checked the wear on the pads but I was a bit taken aback by the news that it seems I might have to replace the chain every 600 miles. Before anybody asks, yes I am retired, overweight and the Cornish roads and weather can be pretty unforgiving - but that's why I bough an e-bike after 40 years on a old fashioned one. Thinking I may need to sign myself up for an e-bike mechanics' class at evening school but I tend to go to bed early these days.
Despite the issues mentioned above, and lack of availability of a proper rear rack (have improvised with a Topeak Beam rack) I have thoroughly enjoyed doing things on this e-bike that I have not been able to do for years on a proper one due to disintegrating knees. Thoroughly recommend the concept and the Giant Quick-e bike to any similar old aged pensioners. Just be aware that dealers do not necessarily tell you about all the likely running costs.