Costco Quest Mid Motor Ebike 2000 KM milage, but now no PAS and no throttle.

[Ed.ride]

Hi,
I bought this Quest Mid-Motor Ebike from Costco 2 or 3 years ago, ride just pass 2000 KM. recently last weekend noticed the paddle assist or throttle suddenly, and I stopped the bike and did a reboot. worked fine. I thought it was connection issue. Today just on my regular work to home bike route, no PAS and throttle again, I tried the same stop and reboot, nothing worked. The battery is fine. I tried to unplug and plug back for all the wire connectors under my handlebars, nothing happened. My bike has the Tektro oil disc brake, I followed the wire and could not find any connector for the brake, the wire goes all the way from handlebar to the brake. I also opened the motor cap and looked inside of the house, no rips and everything is fine. tried unplug and plug, still nothing happened.

• Motor: Ananda MC5-M2 36V 350W
• Symptoms: No throttle, no peddle assist, no walk mode. Display and head lights are fine, I assume the battery is fine.

does anyone have any issues like this? is it the controller issue? I tried to contact Quest, but this company seems out of business during COVID. Thanks everyone!

 

[fechter]

Try disconnecting the brake switch wires.
Does the display show anything when it stops?

 

[Ed.ride]

Try disconnecting the brake switch wires.
Does the display show anything when it stops?

Thanks. I don’t see a brake switch wires. It goes right into the frame and connects breaker. My brake is hydronic oil disc.

 

[Ed.ride]

Try disconnecting the brake switch wires.
Does the display show anything when it stops?

my bike does not have a brake light at the back which turns on when tapping on the brake lever. And there are no error codes on display when I unplug any of those connectors......

 

[neptronix]

Most prebuilt ebike companies will go out of business and/or not support their product.
They are also not typically designed to last or be repaired.
I have never seen this drive system on any other ebike sold in north america. So you're probably going to have a bad time.

If you don't get help, you could always wire up an external controller. 99% of ebike motors have 3 phase wires and 5 hall wires, so can be used with a variety of controllers.

 

[n00b]

Most prebuilt ebike companies will go out of business and/or not support their product.
They are also not typically designed to last or be repaired.
I have never seen this drive system on any other ebike sold in north america. So you're probably going to have a bad time.

If you don't get help, you could always wire up an external controller. 99% of ebike motors have 3 phase wires and 5 hall wires, so can be used with a variety of controllers.

Yeah, find the phase and hall wires and mount up a different controller and throttle.
Hall wires are optional in my book. I have the hall plug and a harness rigged into this BBS03, but just doing the 3 phases, it'll work fine.

 

[2old]

One of my gripes with OEM bikes is enclosed wires which make analyzing problems more difficult (the other is non-removable batteries which make the bike too heavy for mounting on many racks). Both ideas seem stupid (to me).

 

[neptronix]

With a VESC ( it has exceptionally good sensorless driving capability ), i don't mind sensorless either.

On a mid drive you just gut the controller, and run the wires out of whatever hole you have.
..and crank up the power while you're at it

 

[Ed.ride]

Most prebuilt ebike companies will go out of business and/or not support their product.
They are also not typically designed to last or be repaired.
I have never seen this drive system on any other ebike sold in north america. So you're probably going to have a bad time.

If you don't get help, you could always wire up an external controller. 99% of ebike motors have 3 phase wires and 5 hall wires, so can be used with a variety of controllers.

After a couple of days of research and valuation. I have decided to return the bike. It is hard for me get the parts when the company is out of business. Thanks.

 

[Zambam]

After a couple of days of research and valuation. I have decided to return the bike. It is hard for me get the parts when the company is out of business. Thanks.

How were you able to return it after owning it for so long?

I bought this Quest Mid-Motor Ebike from Costco 2 or 3 years ago, ride just pass 2000 KM

 

[neptronix]

After a couple of days of research and valuation. I have decided to return the bike. It is hard for me get the parts when the company is out of business. Thanks.

Cool. Do you plan to build an ebike to replace it? if so, you're in the right place for help with that