HIEHA® Support Center

Welcome to HIEHA after-sales support.

Start here for product setup, warranty registration, replacement support, troubleshooting, manuals, and customer service.

12-Month After-Sales Support
U.S. Customer Service
Fast Setup Help
01 Scan the QR code

Arrive at the official HIEHA support page.

02 Choose your support path

Warranty, setup, troubleshooting, or direct help.

03 Get guided next steps

Submit details so support can respond more efficiently.

Choose Your Support Path

What can we help you with today?

Select the issue that best matches your situation. We’ll guide you to setup help, troubleshooting, warranty registration, replacement review, parts support, order help, or direct customer service.

Support note: for faster service, please include your order number, product model, purchase channel, photos or videos, and a clear description of the issue.

Setup & First Ride

Set up your HIEHA e-bike before the first ride.

Follow these basic setup and safety steps before riding. Always read the included user manual and contact HIEHA support if anything looks damaged, loose, missing, or unclear.

Step 02

Install key parts securely.

Follow the manual to install and adjust the handlebar, front wheel, pedals, saddle, display, and any model-specific accessories.

Assembly Fasteners
Step 03

Charge and lock the battery.

Fully charge the battery before the first ride when possible. Make sure the battery is seated correctly and locked in place before powering on.

Charge Battery Lock
Step 04

Check tires, brakes, and controls.

Confirm tire pressure, brake response, wheel alignment, throttle or pedal-assist behavior, lights, and display status before riding on the road.

Tires Brakes
Step 05

Power on and review the display.

Turn on the bike, review the display information, confirm assist settings, and make sure no warning code or abnormal message appears.

Display Assist Level
Step 06

Take a slow first ride.

Start in a safe open area, use a low assist level, test braking, turning, acceleration, and stopping before riding in traffic.

Low Speed Safe Area

First ride note: wear a helmet, follow local e-bike laws, avoid riding in traffic until you are comfortable, and stop riding immediately if you notice abnormal noise, braking issues, loose parts, battery warnings, or error codes.

SU8 Setup Videos

Watch your SU8 setup guide before the first ride.

Choose your model and watch the assembly video before riding. For battery care, smart display help, replacement parts, troubleshooting, and warranty details, visit the full HIEHA Electric Bike FAQ.

Full Help Center Electric Bike FAQ
Assembly Video

SU8 1.0 setup guide

Watch the SU8 1.0 assembly video for model-specific setup steps before riding, then check brakes, tires, battery lock, handlebar, and pedals.

SU8 1.0 Assembly Setup
Need More Help?

Open the full E-Bike Help Center

Find detailed help for battery charging, CarPlay and Android Auto, replacement parts, warranty, riding checks, and troubleshooting.

Battery & charging
Smart display help
Replacement parts
Warranty & support
View Full E-Bike FAQ

Setup note: videos are visual references. Always follow the included user manual and check brakes, tires, battery lock, handlebar, pedals, lights, and visible fasteners before riding.

Quick Troubleshooting

Find the issue. Check the basics. Get help faster.

If your HIEHA e-bike has a power, display, battery, brake, tire, throttle, pedal-assist, or riding issue, start with these quick checks before submitting a support request.

Before You Start Turn the bike off, move to a safe area, and check the manual.
Submit Support Request
Bike does not power on

Quick checks

  • Confirm the battery is charged.
  • Make sure the battery is fully seated and locked.
  • Check whether the display power button is being held long enough.
  • Inspect visible cable connections for looseness or damage.

Contact support if

  • The display stays completely off after charging.
  • The battery does not charge normally.
  • You see burn marks, water damage, loose wiring, or unusual smell.
Display shows an error code

Quick checks

  • Take a clear photo of the error code on the display.
  • Turn the bike off and restart after a short wait.
  • Check whether any visible cable connector is loose.
  • Do not keep riding if the error affects braking, power, or control.

Contact support if

  • The same error code keeps returning.
  • The motor, throttle, display, or controller behaves abnormally.
  • The bike loses power suddenly during use.
Throttle or pedal assist not working

Quick checks

  • Confirm the bike is powered on and not in a restricted setting.
  • Check the assist level on the display.
  • Make sure the brake lever is not stuck or pressed.
  • Inspect throttle and pedal-assist cable connections if visible.

Contact support if

  • Throttle does not respond after checking settings.
  • Pedal assist cuts in and out unexpectedly.
  • Motor power feels abnormal, delayed, or unsafe.
Brake, tire, or riding noise issue

Quick checks

  • Check tire pressure before riding.
  • Inspect wheels for visible damage or rubbing.
  • Confirm the brake levers respond normally.
  • Check whether the front wheel, handlebar, saddle, and pedals are secure.

Contact support if

  • The brake feels weak, stuck, or uneven.
  • You hear grinding, scraping, or repeated abnormal noise.
  • The tire, rim, fork, or frame appears damaged.
Battery, charging, or range issue

Quick checks

  • Use the included charger and a stable outlet.
  • Confirm the charger indicator behaves normally.
  • Make sure the battery is locked in place before riding.
  • Range can vary with rider weight, assist level, speed, terrain, temperature, and tire pressure.

Contact support if

  • The battery will not charge.
  • The charger or battery becomes unusually hot.
  • The bike shuts off unexpectedly under normal use.
Camera, app, or smart feature issue

Quick checks

  • Confirm the bike/display is powered on.
  • Check app permissions, Bluetooth, Wi-Fi, or phone connection settings if required.
  • Restart the app and the bike system.
  • Check whether the feature is supported on your specific model and phone.

Contact support if

  • The camera feed, app connection, or smart display feature repeatedly fails.
  • The issue continues after restarting and reconnecting.
  • You need model-specific setup guidance.

Safety note: do not disassemble the battery, motor, controller, or electrical system by yourself. If the issue involves power loss, braking, battery heat, damaged wiring, abnormal smell, or frame damage, stop riding and contact HIEHA support.

Contact HIEHA Support

Tell us what happened. We’ll help you with the next step.

Submit your order details, product model, issue type, photos or videos, and a clear description so our support team can review your case more efficiently.

Support Request Form Required fields are marked with *

Warranty, replacement, or parts support may require order verification, product inspection, photos or videos, and eligibility review. HIEHA reserves the right to make the final support decision in accordance with applicable policies and law.

Warranty & Parts Support

12-month after-sales support for your HIEHA product.

Need warranty help, replacement review, missing parts support, or accessory guidance? Start here and prepare your order details so our support team can review your case more efficiently.

02

Replacement Review

If your product or part may qualify for replacement support, please provide order proof, issue photos or videos, and a clear description for review.

Replacement Case Proof Needed
03

Parts & Accessories

Need a charger, cable, mount, battery-related part, display, brake component, tire, sensor, or other accessory? Contact us with your exact model.

Parts Accessories
04

Shipping & Missing Items

If your package arrived damaged, missing parts, or with a shipment issue, keep the packaging and provide photos before submitting a support request.

Missing Parts Shipping Issue
Before You Submit What may be needed for review?
01

Order proof

Order number, purchase channel, purchase date, and email used for the order.

02

Product model

Exact product name, model version, and photos of the product or label if available.

03

Issue evidence

Clear photos, short videos, error codes, damaged areas, or abnormal behavior proof.

04

Issue description

Explain when it happened, what you tried, and whether the product is still safe to use.

What support may cover

Eligible product issues under normal use may be reviewed for troubleshooting, parts guidance, repair direction, replacement support, or other after-sales assistance depending on the case.

What may not be covered

Support may be limited or unavailable for damage caused by misuse, unauthorized modification, accidents, improper installation, abnormal wear, water exposure beyond intended use, lost accessories, or issues outside applicable policy terms.

Parts availability

Parts and accessories depend on product model, production batch, inventory, region, and support eligibility. Please contact HIEHA with your exact model before purchasing or replacing parts.

Need warranty or parts help? Submit your case for HIEHA support review.

Include your order number, product model, issue type, and photos or videos if available.

Warranty & parts note: warranty, replacement, repair, or parts support is subject to order verification, product condition, issue proof, policy terms, parts availability, and applicable law. HIEHA reserves the right to make the final support decision in accordance with applicable policies and law.

Repurchase Coupon Reward

Get up to $50 off your next HIEHA purchase.

Thank you for choosing HIEHA. Eligible customers may receive a repurchase coupon reward for their next HIEHA order after support review.

02

Prepare your order details.

Keep your order number, product model, purchase channel, and email address ready for review.

Order Number Product Model
03

Request your coupon.

Contact HIEHA support and mention that you would like to request a repurchase coupon reward.

Coupon Request Review
04

Use it on your next order.

Once approved, apply the coupon toward an eligible HIEHA product during your next purchase.

Next Order Eligible Products
Ready to claim? Request your repurchase coupon reward.

Include your order number, product model, and the product you are interested in purchasing next.

Coupon terms: coupon amount, eligibility, product applicability, expiration date, and use conditions may vary. This offer cannot be exchanged for cash, may not be combined with certain promotions, and may require order verification. HIEHA reserves the right to make the final interpretation and support decision in accordance with applicable policies and law.