chris edwards
Active member
Before I embark on another 8 hour round trip to get sadly yet another problem sorted out tomorrow I just wanted to see if anyone in the Ebike community may be able to shine a light on an acute problem that has arisen since I had a motor exchange only 5 days a go.
So, my first run out seemed ok until about 3 minuets in when suddenly all assist cut out , you could hear the motor shut off. All lights on the TCU were on and ok.
I persevered with the ride hoping it was a one off glitch. NOPE got persistently worse . No real pattern to when it wants to do it either .
That evening I took the left handmade crank off, removed the cover , unplugged ALL leads to the motor, checked for any visible signs of damage then reinstalled making sure all connections were good.
Went into mission control to make sure the app was finding the bike, reset my own perimeters into a preset and tested around my yard ..... all seemed ok so the next day took it for a power hour test ride. It performed perfectly .
TODAY ..... looking forward to finally getting back to riding trails with family and friends it suddenly began cutting out again , this time erratically . I noticed that after it had cut out when the assist did come back in it came in with a surge .
Alas tomorrow I have to face yet another day away from my business after suffering yet another aborted ride on my day off to get yet another Specialized issue sorted out ..... fed up with Specialized failures ? just a bit ! The past two years I have owned 3 and had 7 warranty claims all resulting in a whole day in time out tomorrows visit will be issue number 8.
Has anyone else had this happen and if so what causes it ?
I suspect either :
1. Damaged cable after installing the new motor , these symptoms never happened before , the previous motor was clutch failure.
2. Crank sensor not working correctly on the new motor
So, my first run out seemed ok until about 3 minuets in when suddenly all assist cut out , you could hear the motor shut off. All lights on the TCU were on and ok.
I persevered with the ride hoping it was a one off glitch. NOPE got persistently worse . No real pattern to when it wants to do it either .
That evening I took the left handmade crank off, removed the cover , unplugged ALL leads to the motor, checked for any visible signs of damage then reinstalled making sure all connections were good.
Went into mission control to make sure the app was finding the bike, reset my own perimeters into a preset and tested around my yard ..... all seemed ok so the next day took it for a power hour test ride. It performed perfectly .
TODAY ..... looking forward to finally getting back to riding trails with family and friends it suddenly began cutting out again , this time erratically . I noticed that after it had cut out when the assist did come back in it came in with a surge .
Alas tomorrow I have to face yet another day away from my business after suffering yet another aborted ride on my day off to get yet another Specialized issue sorted out ..... fed up with Specialized failures ? just a bit ! The past two years I have owned 3 and had 7 warranty claims all resulting in a whole day in time out tomorrows visit will be issue number 8.
Has anyone else had this happen and if so what causes it ?
I suspect either :
1. Damaged cable after installing the new motor , these symptoms never happened before , the previous motor was clutch failure.
2. Crank sensor not working correctly on the new motor