Service beyondthe flight

Warranty coverage, returns and clear next steps for support.

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12 monthsComplete UAV warranty

3–6 monthsAirframes & propulsion kits

15 daysQuality-related return application window

Coverage and conditions follow the sales contract and supplied warranty documents.

01 / OVERVIEW

Clear terms. Dependable support.

This policy applies to the specified products purchased directly from ZHT. For products purchased through other channels, contact the seller first. Custom configurations, acceptance criteria and specific services are governed by the written contract agreed by both parties.

Direct purchase

Applies to airframes, airframe and propulsion kits, complete UAVs, batteries, power modules and related accessories purchased directly from ZHT. Products purchased through other channels should first be referred to the seller.

Written terms

Custom configurations, acceptance criteria and specific services are governed by the written contract agreed by both parties. Contractual terms must comply with the mandatory requirements of applicable laws and regulations.

Inspection-based

Where the product has been properly installed, used and maintained in accordance with the user manual, failures caused by defects in materials, manufacturing or assembly during the warranty period are eligible for service, subject to inspection findings.

Basis of service

This policy, the sales contract and the warranty documentation supplied with the products jointly form the basis for service. Service scope, shipping, taxes and fees are governed by the sales contract. For third-party components, ZHT sales personnel or the customer will assist in coordinating with the original manufacturer.

02 / WARRANTY

Coverage, defined by category.

Warranty periods vary by product category. The applicable period and coverage for specific models and components are governed by the sales contract and the warranty documentation supplied with the products.

Product category	Warranty period	Coverage and conditions
Complete UAVs	12 months	Includes the flight controller, navigation system, remote controller and communication-link commissioning specified in the agreed scope of delivery. Airframes, propulsion kits, batteries and third-party components are covered under the relevant contract terms.
Airframes and propulsion kits	3–6 months	Covers structural components, motors, electronic speed controllers and other components in the agreed configuration. Specific model and component periods are governed by the contract. Normal wear of propellers and other consumables does not constitute a quality defect.
Batteries	12 months	For batteries used correctly in accordance with the product specifications, the warranty period is 12 months from the date of manufacture, as indicated by the printed batch code. ZHT is not responsible for incidents resulting from operation that does not comply with the product specifications.
Onboard electronics	Same as complete UAV	Applies to onboard electronics supplied by ZHT that are not third-party branded products. Separately sold items and third-party components are covered under the contract and the warranty documentation supplied with the products.
Power modules	As specifically agreed	For power modules sold separately or supplied with a complete UAV, the warranty period and coverage are those specified in the contract or the warranty documentation supplied with the products.
Tools and consumables	Normal wear not covered	Wear, consumption and aging of screws, vibration-damping balls, propeller blades and other accessories during normal use are not covered by free warranty service. Free refurbishment or replacement is not provided for surface wear, minor oxidation or discoloration of 3D-printed or metal parts caused by non-quality factors where structural safety and normal operation are unaffected.

Begins the day after receipt

For applicable products other than batteries, the warranty period begins on the day after receipt and is verified against the order, invoice and delivery receipt records.

12 months from manufacture

For batteries used correctly in accordance with the product specifications, the warranty begins on the date of manufacture shown by the printed batch code. Incidents caused by non-compliant operation are not covered.

03 / EXCLUSIONS

Six situations outside free warranty.

The following circumstances are assessed on the basis of the physical product, logs and inspection findings. An accident, disassembly or reassembly, or connection of third-party components does not, in itself, exclude warranty coverage for an unrelated quality defect.

Normal wear or expired warranty

Wear, aging or consumption arising from normal use, or components whose applicable warranty period has expired.

Accidents unrelated to quality

Damage caused by operating errors, collisions, drops, crashes, or improper transportation or storage. Where an accident may have resulted from a product fault, the cause must first be analyzed.

Improper assembly or modification

Non-compliant disassembly, reassembly, rewiring, repair or modification, or installation or connection of incompatible software or hardware, where such actions are causally related to the reported fault.

Operation outside specified conditions

Damage caused by overloading, excessive voltage or current, reverse polarity, short circuits, inadequate heat dissipation, or exposure beyond the product's specified environmental, weather or electromagnetic limits.

Improper battery handling or use

Damage caused by overcharging, overdischarging, improper storage, or continued operation despite known warnings, component damage, insufficient battery charge or similar conditions.

External causes or unverifiable identity

Damage caused by force majeure or other factors unrelated to product quality; or altered product identification or supporting documents where the product's identity cannot be verified through other valid information.

FAIR REVIEW / ASSESSMENT

An accident, disassembly or third-party connection does not automatically void coverage for an unrelated quality defect. Final responsibility is assessed using the physical product, logs, inspection findings and applicable contract terms.

04 / RETURNS

Returns, measured by time and cause.

All application periods are calculated in calendar days beginning on the day after receipt of the product. Retain proof of purchase, delivery records and evidence of the reported issue, and contact ZHT first to confirm the proposed resolution.

15days

Quality-related return or exchange

A performance fault verified as not user-induced may be submitted for return or exchange in accordance with this policy and the applicable contract.

Not available

Non-quality-related returns

ZHT does not offer returns or exchanges without a quality-related reason for airframes, airframe and propulsion kits, complete UAVs or other products purchased for production or business operations. Requests arising from changed requirements, project cancellation or no longer needing the product are not accepted.

Non-custom products

Returns or exchanges for non-quality reasons are not available. Quality, delivery and acceptance responsibilities are governed by the contract.

Custom products

Returns or exchanges for non-quality reasons are not available. Quality issues and delivery nonconformities are handled under the contract; returns required by the contract remain available.

Written confirmation

Products manufactured or processed to customer-specific drawings, dimensions, interfaces or functional requirements confirmed in writing are subject to the custom-product rules.

Per contract

Application periods, acceptance criteria and special terms are governed by the sales contract and the warranty documentation supplied with the products.

ZHT may refuse a return request in the following circumstances

All periods are calculated from the day after receipt. Approved items must be dispatched within the period stated below.

01The request is submitted after the return period specified by ZHT.
02The returned items, original packaging or accessories are incomplete, or the product exterior has sustained human-caused damage.
03Valid proof of purchase or transaction documents cannot be provided, or such documents have been forged or altered.
04Defects result from collisions or burning unrelated to product quality, unauthorized modification, foreign matter such as water, oil or sand, incorrect installation, or use contrary to the user manual.
05Labels, serial numbers or other product identification have been removed, damaged or altered.
06The product has been damaged by fire, flooding, lightning, traffic accidents or other force majeure events.
07The relevant items are not dispatched within seven calendar days after ZHT approves and stamps the return service application.
08Other circumstances specified in this policy apply.

05 / SERVICE REQUEST

Start your service request.

Retain purchase, delivery and issue evidence. Contact ZHT first to confirm the proposed resolution before dispatching items or arranging inspection. Complete information helps verify product identity, warranty commencement and application eligibility.

01
Product model and serial number
Used to verify the product category, applicable period and product identity.
02
Proof of purchase
Order, invoice or other valid evidence of the purchase channel.
03
Delivery and receipt records
Used to verify the commencement date for warranty or return applications.
04
Fault description and evidence
The observed issue, time of occurrence, operating conditions, and relevant photos, videos or flight logs.
05
Contact information
Allows the service team to confirm details, request further information and discuss the proposed resolution.

AFTER-SALES SUPPORT

Clear next steps. For every issue.

Send the product information, purchase records and issue evidence to our after-sales email. We will first verify the information and confirm the proposed next steps.

Submit a service enquiry →

POLICY NOTE

This page presents the main terms of the after-sales service and warranty policy. The sales contract and the warranty documentation supplied with the products jointly form the basis for service. Where a difference exists, the applicable written contract will govern, subject to mandatory requirements of applicable laws and regulations.

ZHT TECHNOLOGY CO., LTD.INFO@ZHTAERO.COM