Warranty Policy
Warranty & Returns Policy
Last Updated: 13 October 2026
At eHasher Mining Technologies, we are committed to supplying quality cryptocurrency mining equipment, providing knowledgeable technical support and treating our customers fairly.
This policy explains our quality assurance procedures, commercial warranties, returns process and your rights when purchasing from eHasher.
Important: Nothing in this policy excludes, restricts or otherwise affects your statutory consumer rights under applicable law.
1. Quality Assurance Commitment
1.1 Individually Tested Mining Equipment
Our Bitaxe, NerdAxe, NerdQaxe and NMQAxe mining devices undergo individual inspection and operational testing before dispatch to verify their functionality and performance.
Where applicable, tested products include an eHasher quality control sticker recording:
- Technician Initials
- Inspection Date
- Firmware Version
This quality assurance process helps identify potential issues before dispatch and ensures that tested equipment meets our operational standards.
1.2 Factory-Sealed Mining Equipment
Products supplied in original manufacturer-sealed packaging, including Canaan Avalon mining equipment, are dispatched unopened to preserve their factory condition and packaging integrity.
These products are subject to the manufacturer's own quality control procedures and are not individually powered on or tested by eHasher before dispatch.
1.3 Customer Support
Whether your equipment has been individually tested by eHasher or supplied factory-sealed, our team is available to provide reasonable technical assistance with initial setup, configuration and troubleshooting.
Our quality assurance procedures and commercial warranties are provided in addition to your statutory consumer rights.
2. Overview and Scope
This Warranty & Returns Policy applies to products purchased directly from eHasher Mining Technologies through our website or other authorised eHasher sales channels.
We supply products from several manufacturers, including specialist open-source cryptocurrency mining equipment. Commercial warranty periods and manufacturer support arrangements may vary depending on the product.
Where a product listing expressly provides a longer commercial warranty, that advertised warranty will apply in accordance with its terms.
Products purchased from independent third-party retailers are subject to the selling retailer's obligations and any applicable manufacturer warranty.
3. Consumer Rights
3.1 United Kingdom Customers
UK consumers are protected by applicable consumer legislation, including the Consumer Rights Act 2015 and the Consumer Contracts Regulations 2013.
Goods must meet applicable legal requirements, including being of satisfactory quality, fit for purpose and as described.
Where goods do not conform to the contract, consumers may be entitled to remedies including repair, replacement, a price reduction or refund, depending on the circumstances.
For qualifying faults, consumers generally have a short-term right to reject goods within 30 days.
During the first six months following delivery, a fault is generally presumed to have existed at delivery unless the retailer establishes otherwise or the presumption is incompatible with the goods or circumstances.
Consumers may have rights extending beyond any commercial warranty period. In England and Wales, certain contractual claims may be brought within six years, although this does not constitute a six-year product warranty.
3.2 European Union Customers
Consumers purchasing from eHasher in European Union countries retain the mandatory consumer protections applicable to their purchases.
EU consumer legislation generally provides a minimum two-year legal guarantee for goods that do not conform to the sales contract, subject to applicable national rules.
Different provisions may apply to second-hand goods where permitted by national legislation.
Any commercial warranty offered by eHasher operates in addition to these legal protections and does not replace or restrict them.
3.3 Other International Customers
Customers outside the United Kingdom and European Union retain any mandatory consumer protections applicable to their purchases.
Where mandatory local consumer legislation provides greater protection than this policy, the applicable legal requirements will take precedence.
4. Change-of-Mind Returns
4.1 Cancellation Rights
For qualifying online purchases, UK consumers generally have the right to cancel their order within 14 days of receiving their goods, without providing a reason.
Where an order contains multiple goods delivered separately, the cancellation period will generally begin when the final item is received.
Customers must notify eHasher of their decision to cancel within the applicable cancellation period.
Following cancellation, customers generally have a further 14 days to return the goods.
Equivalent or additional cancellation rights may apply to customers in other countries under applicable consumer legislation.
4.2 Product Handling and Condition
Customers may inspect goods to establish their nature, characteristics and functioning, as they would reasonably be permitted to do in a physical retail shop.
Where goods have been handled beyond what is necessary for this purpose, eHasher may make a lawful deduction from the refund to reflect any resulting reduction in value.
For cryptocurrency mining equipment, factors that may be relevant when assessing diminished value include:
- Extended mining operation beyond reasonable product inspection
- Physical damage or excessive wear
- Alterations affecting the product's resale condition
- Missing accessories or components that reduce the product's value
- Damage resulting from incorrect installation or handling
Any deduction will be assessed fairly, based on the actual reduction in value and applicable law. It will not be an automatic restocking charge.
Customers are encouraged to retain original packaging and accessories to help protect products during return shipping.
4.3 Exemptions from Cancellation
Certain products may be exempt from statutory cancellation rights where an exemption applies under relevant consumer legislation.
This may include goods genuinely made to a customer's individual specifications or clearly personalised.
Standard product configurations, firmware installation, colour selections or ordinary assembly do not automatically qualify a product for this exemption.
Any applicable exemption will be identified before purchase where required by law.
These exemptions do not remove statutory remedies for faulty or misdescribed goods.
4.4 Change-of-Mind Return Shipping
For valid change-of-mind cancellations, customers are generally responsible for the direct cost of returning goods where this responsibility has been communicated before purchase and is permitted by applicable law.
Customers should use appropriate protective packaging and a tracked shipping service.
Where legally required, eHasher will refund the original standard delivery charge paid by the customer. Additional charges for premium or expedited delivery options selected by the customer may not be refundable.
No standard restocking fee is charged for exercising statutory cancellation rights.
5. Refunds
5.1 Refund Processing
For valid statutory cancellations, refunds will be processed within the timescales required by applicable consumer legislation.
For qualifying UK goods cancellations, refunds will generally be issued within 14 days of receiving the returned goods or receiving satisfactory evidence that they have been sent back, whichever occurs first.
Where applicable law requires an earlier refund, that requirement will apply.
We aim to inspect returned products promptly and communicate any relevant findings to the customer.
5.2 Refund Methods
Refunds will normally be issued using the original payment method unless an alternative arrangement is expressly agreed and permitted by law.
No additional refund processing fees will be imposed where prohibited by applicable legislation.
5.3 Cryptocurrency Payments
Where cryptocurrency payment is available, refund arrangements will be explained to the customer and handled in accordance with applicable consumer law.
Any proposed cryptocurrency refund method, conversion basis or network fee arrangement must comply with the customer's statutory refund rights.
Where legally required, refunds will reflect the amount owed under the original sales contract, rather than an arbitrary cryptocurrency exchange rate.
Customers should verify any wallet address supplied for an agreed cryptocurrency refund.
6. Commercial Warranty Coverage
In addition to applicable statutory consumer rights, eHasher provides the following limited commercial warranties.
Unless otherwise stated in the relevant product listing, commercial warranty periods begin on the date of delivery.
6.1 Bitaxe, NerdAxe and Open-Source Mining Equipment
Commercial Warranty: 90 Days
This warranty applies to eligible open-source mining equipment supplied by eHasher, including:
- Bitaxe mining devices
- NerdAxe mining devices
- NerdQaxe and NerdQaxe++ mining devices
- NMQAxe and NMQAxe++ mining devices
- NerdQX mining devices
- NerdOctaxe mining devices
The commercial warranty covers defects in materials or workmanship arising during normal use in accordance with the product's published operating specifications.
Coverage is subject to the terms and exclusions described in this policy.
6.2 Lucky Miner Products
Commercial Warranty: 90 Days
Eligible Lucky Miner products supplied by eHasher include a 90-day limited hardware warranty covering manufacturing defects under normal operating conditions.
Any additional manufacturer warranty will be identified where applicable.
6.3 Canaan Avalon Products
Commercial Warranty: As Specified on the Individual Product Listing
Canaan Avalon products are supplied in their original manufacturer-sealed packaging.
Manufacturer warranty coverage may vary depending on the model, supplier arrangements, original manufacturing or dispatch date and applicable manufacturer terms.
Where a manufacturer warranty is advertised, its duration and applicable conditions will be stated in the individual product listing or accompanying warranty information.
Customers may contact eHasher for assistance with warranty enquiries and statutory consumer claims.
Any manufacturer warranty is additional to the customer's statutory rights against eHasher as the selling retailer.
6.4 5tratumOS Home Mining Pool Nodes
New Units: 12-Month Limited Hardware Warranty
Pre-Owned Units: 90-Day Limited Hardware Warranty
New and pre-owned 5tratumOS home mining pool nodes are inspected and prepared before dispatch.
The commercial hardware warranty covers qualifying defects in the supplied hardware under normal operating conditions.
Software configuration, third-party network services, blockchain synchronisation, mining pool availability and compatibility with future software updates are not guaranteed under the hardware warranty.
Software-related problems may still be eligible for technical assistance or statutory remedies where applicable.
Pre-owned equipment may display reasonable cosmetic wear consistent with its age, condition and product description.
6.5 Mining Accessories and Cooling Equipment
Commercial Warranty: 90 Days
Eligible accessories, including cooling fans, heatsinks, mounting kits and related components, are covered against defects in materials and workmanship under normal intended use.
Damage caused by incorrect installation, unsuitable electrical connections or use outside published specifications is excluded from the commercial warranty where such circumstances caused the damage.
6.6 Longer Advertised Warranties
Where an individual product listing, sales agreement or accompanying commercial guarantee provides a longer warranty than the standard periods above, that longer warranty will be honoured in accordance with its applicable terms.
Nothing in this policy retrospectively reduces a commercial warranty already promised to a customer.
7. General Commercial Warranty Terms
7.1 What Is Covered
Subject to the applicable warranty period and product-specific terms, the eHasher commercial warranty covers qualifying defects in materials or workmanship occurring during normal intended use.
Examples may include:
- Premature failure of electronic components due to manufacturing defects
- Defective voltage regulation or power-management components
- Manufacturing-related hardware faults
- Defective cooling components supplied with the product
- Other verified hardware defects not caused by misuse or external damage
7.2 What Is Not Covered
The following circumstances are excluded from the voluntary commercial warranty where they cause or materially contribute to the reported damage:
- Accidental damage, impact damage or physical abuse
- Liquid ingress, corrosion or exposure to unsuitable environmental conditions
- Incorrect installation or electrical connections
- Use of unsuitable, incorrectly rated or incorrectly connected power supplies
- Damage caused by power surges or external electrical faults
- Operation outside published electrical, thermal or environmental specifications
- Excessive overclocking or overvolting resulting in component damage
- Obstructed ventilation or deliberate disabling of cooling systems
- Unauthorised physical modifications that cause the reported fault
- Normal cosmetic wear that does not affect product functionality
- Software configuration problems not attributable to a covered hardware defect
These exclusions apply to the voluntary commercial warranty only and do not restrict remedies available under applicable consumer law.
8. Operating Specifications, Performance Settings and Firmware
8.1 eHasher Tested Operating Configurations
At eHasher Mining Technologies, we prioritise equipment reliability, operational stability and responsible power management over achieving the highest possible hashrate.
Where applicable, our specialist open-source mining equipment is individually tested and configured before dispatch using operating parameters selected by eHasher.
Advertised performance figures reflect the operating configurations and testing standards applicable to the individual product. Actual performance may vary within reasonable tolerances depending on operating conditions.
Customers are encouraged to retain the supplied operating configuration to help maintain stable performance and appropriate component temperatures.
8.2 Changes to Operating Settings
Some mining devices allow users to adjust operating frequency, core voltage, cooling settings and other performance parameters.
These adjustments may increase power consumption, operating temperatures and stress on electronic components.
eHasher does not recommend operating mining equipment beyond the tested or published operating limits specified for the individual product.
Damage directly caused by excessive frequency, voltage, inadequate cooling or operation outside published specifications is excluded from the voluntary commercial warranty.
Changing operating settings does not automatically invalidate warranty coverage for an unrelated manufacturing defect.
All statutory consumer rights remain unaffected.
8.3 Firmware Modifications
Open-source mining equipment may support alternative firmware and user-configurable operating parameters.
eHasher recommends using the firmware supplied with the product or compatible firmware versions that maintain the device's published operating specifications.
Damage directly attributable to unsafe firmware behaviour, incorrect configuration or operation outside published specifications may be excluded from the voluntary commercial warranty.
Installing alternative firmware does not automatically invalidate coverage for an unrelated hardware defect or remove statutory consumer rights.
8.4 Cooling and Thermal Management
Customers should ensure mining equipment operates with adequate ventilation and within the published environmental and thermal specifications.
Cooling fans, heatsinks and thermal-management components must not be deliberately obstructed or disabled during operation.
Damage directly caused by inadequate cooling, unsafe operating temperatures or improper modification of cooling components is excluded from the voluntary commercial warranty.
8.5 Power Supplies and Electrical Connections
Mining equipment must be operated using appropriately rated and compatible power supplies and electrical connections.
Damage directly caused by unsuitable, incorrectly rated or improperly connected third-party power supplies is excluded from the voluntary commercial warranty.
Faults involving power supplies supplied by eHasher will be assessed in accordance with the applicable warranty and statutory consumer rights.
9. Warranty Claims and Technical Assessment
9.1 Reporting a Fault
If you experience a problem with a product purchased from eHasher, please contact:
Email: hello@ehasher.com
Alternatively, submit a return request using our online form:
Where available, please provide:
- Order number and purchase details
- Description of the reported fault
- Relevant photographs or diagnostic screenshots
- Firmware version
- Operating frequency and voltage settings
- ASIC and voltage regulator temperatures, where available
- Details of the power supply being used
Providing this information can help us diagnose the issue more efficiently. Customers will not be denied statutory remedies solely because particular diagnostic information is unavailable.
9.2 Remote Troubleshooting
Where appropriate, eHasher may offer remote troubleshooting assistance before arranging a return.
This may include guidance on safe configuration checks, firmware recovery, connectivity or restoring recommended operating settings.
Customers should not attempt potentially unsafe electrical repairs or procedures.
9.3 Product Inspection
Where remote troubleshooting cannot resolve the reported issue, eHasher may arrange for the product to be returned for technical inspection.
Our inspection may include checking electrical connections, cooling components, visible physical damage, firmware configuration and relevant hardware diagnostics.
Any decision regarding warranty coverage will be based on the available evidence and applicable consumer law.
During periods when legislation places the burden of proof on the retailer, eHasher will assess claims in accordance with those requirements.
9.4 Warranty Resolution
Where a fault is covered by the commercial warranty, eHasher may offer an appropriate repair or replacement in accordance with the warranty terms.
Where statutory consumer rights apply, the customer will receive the remedy required by applicable law, which may include repair, replacement, price reduction or refund.
Any repair or replacement will be completed within a reasonable timeframe and without significant inconvenience where required by law.
9.5 Damage Outside Warranty Coverage
Where inspection establishes that damage resulted from circumstances excluded from the commercial warranty and no statutory remedy applies, eHasher will explain the findings to the customer.
Where practical, we may offer a chargeable repair or replacement service.
No paid repair will be undertaken without the customer's agreement to the applicable charges.
10. Return Shipping and Warranty Costs
10.1 Confirmed Faults and Statutory Claims
Where goods are faulty or otherwise fail to conform to the sales contract, eHasher will meet the reasonable return and remedy costs required by applicable consumer legislation.
For qualifying UK claims, this may include arranging a prepaid return label or reimbursing reasonable agreed return postage costs.
10.2 International Warranty Claims
International customers should contact eHasher before returning any equipment.
Return shipping arrangements, customs documentation and associated costs will be handled in accordance with applicable law and the nature of the claim.
Where eHasher is legally responsible for remedying faulty goods, customers will not be required to bear costs that applicable consumer legislation requires the retailer to cover.
10.3 Returns Not Covered by Warranty
Where inspection establishes that a product is not defective and no statutory remedy applies, reasonable return shipping or optional repair costs may be payable by the customer, subject to prior communication and applicable law.
Customers will be informed of any proposed charges before paid services are undertaken.
11. Return Authorisation Process
To help us process returns efficiently, customers are encouraged to obtain a Return Merchandise Authorisation (RMA) before sending equipment back.
- Contact eHasher or submit an online return request.
- Provide your order details and reason for return.
- Receive return instructions and an RMA reference where applicable.
- Package the equipment securely to prevent transit damage.
- Follow the agreed return shipping arrangements.
- Retain proof of postage or tracking information.
Submit an eHasher Return Request
RMA references are normally valid for 30 days for administrative purposes.
Failure to obtain an RMA or expiry of an RMA reference does not remove statutory cancellation rights or remedies for faulty goods.
12. Undeliverable and Refused Shipments
Customers should ensure that delivery addresses and contact details are accurate when placing an order.
Where a shipment is returned because of an incorrect address, failure to complete required customs formalities or refusal of delivery, eHasher will review the circumstances before determining any applicable charges or refund.
Reasonable additional carrier or return costs may be recoverable where legally permitted and where the customer is responsible for those costs.
No automatic restocking fee will be imposed.
Nothing in this section limits applicable cancellation rights, statutory remedies or eHasher's responsibility for delivery under consumer law.
13. Cryptocurrency Mining Performance and Rewards
Cryptocurrency mining involves technical, financial and network-related variables that are outside eHasher's control.
Mining performance may vary depending on firmware, operating settings, temperature, network conditions, mining difficulty and other factors.
Published hashrate and power-consumption figures may represent typical, approximate or maximum performance under specified conditions.
eHasher does not guarantee cryptocurrency earnings, mining profitability, successful block discovery or any particular financial return.
Solo mining is probabilistic, and purchasing mining equipment does not guarantee that a cryptocurrency block will be found.
Customers are responsible for assessing the financial suitability of cryptocurrency mining, including electricity costs and potential operating expenses.
These statements do not exclude liability for inaccurate product descriptions, misrepresentation, defective goods or other matters for which liability cannot lawfully be excluded.
14. Technical Support
eHasher aims to provide knowledgeable UK-based technical support for mining equipment purchased directly from us.
Reasonable assistance may be available for:
- Initial setup and configuration
- Firmware updates and recovery guidance
- Network and Wi-Fi connectivity
- Mining pool configuration
- Performance troubleshooting
- Cooling and operating guidance
- Hardware fault diagnosis
Technical support availability depends on the product, available documentation, manufacturer support and the continued availability of compatible software and hardware.
Ongoing technical assistance does not extend the duration of a commercial hardware warranty or constitute a guarantee of indefinite product support.
We will always aim to assist customers wherever reasonably practical.
15. Limitations of Liability
Nothing in this policy excludes or restricts liability for death or personal injury caused by negligence, fraud, fraudulent misrepresentation, breach of statutory consumer rights or any other liability that cannot legally be excluded or restricted.
Subject to applicable law, eHasher does not guarantee cryptocurrency mining income, profitability, block discovery or uninterrupted access to third-party mining pools, blockchain networks or related services.
Any limitation of liability will apply only to the extent permitted by applicable law.
Customers retain all mandatory legal remedies arising from faulty goods, misdescription or other breaches of applicable consumer legislation.
16. Contact Information
For warranty enquiries, returns, technical support or questions regarding this policy, please contact:
eHasher Mining Technologies
13 Albany Way
Skegness
PE25 2NA
United Kingdom
Email: hello@ehasher.com
Website: https://ehasher.com
Online Returns: Submit a Return Request
17. Policy Updates
eHasher may update this policy periodically to reflect changes in our products, commercial warranty arrangements, operating procedures or applicable legislation.
Changes will not retrospectively reduce commercial warranty rights already provided to customers or affect existing statutory rights.
The applicable commercial warranty terms are those provided with the product or agreed at the time of purchase, subject to mandatory consumer legislation.
Your Consumer Rights
This Warranty & Returns Policy provides information about eHasher's commercial warranties and returns procedures. It does not replace or restrict any rights or remedies available under applicable consumer protection legislation.
