Support
After-sales support for troubleshooting, spare parts, and replacement-path decisions.
Use this desk when the order is already placed and the next step is diagnosis, matched replacement, tuning guidance, or a repair-versus-return decision.
Support channel
Global support line
Global Support: +1-518-722-7315Best for urgent order-linked troubleshooting during business hours.
Use this channelSupport channel
WhatsApp engineering
WhatsApp: +86-19952400441Use this channel when photos, videos, and live setup checks matter more than a long email thread.
Use this channelSupport channel
Service email
support@stepmotech.onlineBest for RMA evidence, spare-part lists, and documents that should stay attached to the case.
Use this channelSupport channel
Engineering review request
Request a guided troubleshooting slotUse the contact desk when the case needs a structured handoff instead of one-off article reading.
Use this channelRepair and replacement policy
What belongs in after-sales
Open after-sales support when the issue involves troubleshooting, replacement parts, tuning, or a field failure that cannot be resolved from the product page alone.
Include the SKU, order number, wiring conditions, controller or driver settings, and photo or video evidence so support can triage the case in one pass.
Use the same intake path for repair guidance, replacement-part confirmation, and advice on whether a problem should move into return, warranty, or redesign review.
SLA
Response targets
First reply<= 4hBusiness hours target for technical and order-linked after-sales requests.
Initial diagnosis1 business dayTarget for confirming whether the issue is setup, compatibility, logistics, or hardware-related.
Replacement plan48hTarget to confirm spare-part path, substitute SKU, or RMA direction once the evidence set is complete.
Spare parts
Direct product routes for common replacement items
Use product pages when you already know the replacement family. Use contact support when compatibility still needs confirmation.
Software and firmware
Driver setup and commissioning paths
Open the matched product route first for specifications and documentation, then escalate to support if the issue depends on a live installation or field symptom.
Knowledge base
Use the right support surface
ReferenceHelp CenterStart from the broader support hub when the issue category is still unclear.ReferenceShipping & CustomsUse when the question is really transit timing, DDP handling, or delivery routing.ReferenceReturns & WarrantyUse this when the case is moving toward an approved return instead of troubleshooting.ReferenceSelector ToolUse selector when the root problem is sizing or product mismatch rather than a field failure.
FAQ
Common after-sales questions
Send the SKU, order reference, issue summary, current setup details, and clear photo or video evidence so the support team can separate setup issues from hardware faults quickly.
Use the spare-parts cards on this page for direct product routing, or move to contact support when you need confirmation on compatibility before ordering.
Use after-sales first when the issue still needs diagnosis or matched-part confirmation. Move to returns once the case has clearly become an approved return or refund workflow.