The No-Fluff Guide to Easy Ways to RMA Your Miners

The No-Fluff Guide to Easy Ways to RMA Your Miners | Last Updated June 2026

TLDR: Easy Ways to RMA Your Miners At a Glance

• An RMA (Return Merchandise Authorization) is the formal process for returning a broken miner to your vendor or manufacturer for repair or replacement.
• Before shipping anything, always try remote diagnosis first � many faults are firmware issues you can fix at home.
• Check your warranty status by serial number on the manufacturer's website as soon as you receive a new miner, because warranty runs from the born-on date, not your purchase date.
• Common warranty voiders include overclocking, unauthorized repairs, water damage, burned hash board components, and poor power supply conditions.
• You must get an RMA number before shipping � sending your miner back without one can get the package rejected or delay your repair significantly.
• Gather solid evidence before you open a ticket: photos, a video of the fault, log files, and your order details all speed things up.
• You typically cover return shipping to the vendor; the vendor usually covers shipping back to you when the repair falls within warranty.
• RMA numbers expire quickly � usually within 7 to 10 calendar days of being issued � so ship as soon as you receive yours.
• Out-of-warranty miners can still be repaired, but you'll foot the full bill for both shipping and parts or labor.
• If you bought through a reseller like Endless Mining, your RMA goes through them first before reaching the manufacturer.

What Is an RMA and Why Does It Matter

RMA stands for Return Merchandise Authorization. Simply put, it's the formal permission a manufacturer or vendor gives you to send a broken product back for a repair, replacement, or refund. Without it, your return is technically unauthorized � and some vendors will refuse the shipment entirely.

For crypto miners, the RMA process is critical because these machines are expensive, often running $1,500 to $8,000 or more per unit in 2026. When a miner starts throwing errors or drops hash rate, you need to act fast. Every day a machine sits idle is revenue walking out the door. Knowing the easy ways to RMA your miners means less downtime and fewer nasty surprises.

The RMA process for ASIC miners is broadly the same whether you own an Antminer, Whatsminer, or Goldshell � but the details do vary. So let's break it all down.

Step 1 � Diagnose the Fault Before You Do Anything Else

Here's a step a lot of miners skip, and it costs them time. Before you even think about shipping your machine anywhere, try to diagnose the problem remotely.

Many common ASIC miner faults are actually firmware issues, configuration problems, or connection errors � and they're fixable at home. Manufacturers like Bitmain will often assess your claim remotely first, based on the evidence you submit. If they can push a fix remotely, you won't need to ship anything.

Start with a basic visual inspection. Look for a red fault light, unusual fan behavior, or physical damage. Then log into the miner's web interface and check the hash board status. Note any error codes. A low hash rate on one chain, for instance, often points to a specific hash board rather than the whole machine needing a return.

Also try a factory reset and firmware update before opening a ticket. These two steps resolve a surprising number of "broken miner" situations. Document everything as you go � you'll need that evidence later.

Step 2 � Check Your Warranty Status Right Now

This one catches people off guard. Most miners think their warranty starts on the day they bought the machine. It doesn't. Warranty coverage typically runs 12 months from the born-on date � that's the date the manufacturer shipped the unit, not the date it arrived at your door or the date you bought it from a reseller.

Manufacturing and purchase dates can differ by weeks or even months. So if you bought a refurbished or older-stock unit, your warranty may already be shorter than you expect.

The good news is that checking your status takes about 30 seconds. Here's where to check by brand:

• Bitmain Antminer � service support center warranty
• MicroBT Whatsminer � whatsminer support portal
• Goldshell � Goldshell support page, warranty section
• IceRiver � warranty section
• Canaan Avalon � Canaan support portal

Enter the serial number of your unit. You can also check individual component serials � control boards, hash boards, and PSUs each have their own warranty status. Do this check the moment your new miner arrives, not when something goes wrong.

Step 3 � Know What Voids Your Warranty

This is where things get real. Even if your machine is within the warranty period, a voided warranty means you're paying for everything out of pocket. The easy ways to RMA your miners start with not killing your warranty in the first place.

Here's what typically gets your warranty thrown out:

• Overclocking � pushing your miner beyond factory specs voids warranty across virtually every manufacturer.
• Unauthorized repairs � opening the unit and swapping out components yourself, without manufacturer permission, is a fast track to a denied claim.
• Burned hash board components � this usually points to electrical misuse and is excluded by default.
• Water damage or high humidity exposure � ASIC miners are not rated for humid environments. Liquid damage voids the warranty immediately.
• Poor power supply conditions � voltage surges, lightning damage, or using an undersized PSU all fall on you.
• Removing or replacing parts without inspection clearance � even if you're just trying to fix it yourself, doing this without prior authorization disqualifies you.

If any of these apply to your situation, skip ahead to the out-of-warranty repair section below.

Step 4 � Gather Your Evidence Before Opening a Ticket

Don't open your RMA ticket empty-handed. Vendors and manufacturers process claims faster when you come prepared. Think of it like filing an insurance claim � the more documentation you have, the smoother it goes.

Pull together the following before you contact anyone:

• Order number and proof of purchase
• Photos of the miner's exterior and packaging (especially if there's physical damage)
• A short video demonstrating the fault in action � this is essential for dead-on-arrival (DOA) claims
• Log files from your mining software showing hash rate drops or error codes
• The miner's serial number and firmware version

If you bought through a vendor like Endless Mining, note the date of purchase and any communication you've already had with them. Vendors who receive well-documented claims can escalate to manufacturers faster.

Step 5 � Contact Your Vendor First, Not the Manufacturer

Here's something that confuses a lot of first-timers. If you bought your miner through a reseller or vendor � rather than directly from Bitmain or MicroBT � your RMA doesn't go straight to the manufacturer. It goes through your vendor first.

Vendors are the manufacturer's direct clients. So if you bought through Endless Mining or another reseller, that vendor handles your claim and liaises with the manufacturer on your behalf. Contact them first, explain the issue clearly, and let them guide the next steps.

At this point, a technician may walk you through remote troubleshooting, schedule an on-site visit, or confirm that a physical return is necessary. Don't ship anything until you've had this conversation. Sending hardware back without prior authorization is one of the most common � and costly � mistakes miners make.

Step 6 � Open Your RMA Ticket and Get Your RMA Number

Once you've confirmed the machine needs to go back, it's time to formally open the return. Most manufacturers and vendors let you do this via email or through an online ticket portal on their website.

When you submit your ticket, include everything from your evidence package. Be thorough. Explain the issue clearly, state whether the machine is within warranty, and include your shipping address and contact details.

After your ticket is reviewed and approved, you'll receive an RMA number. This is the most critical piece of the whole process. The RMA number is your authorization to ship � without it, your return is unauthorized. Treat it like a tracking code for your claim.

One important detail: RMA numbers expire fast. Most manufacturers give you 7 to 10 calendar days from the issue date to actually ship the unit. If you miss that window, you'll need to open a new ticket and start over. So once you have your number, move quickly.

Step 7 � Prepare and Ship Your Miner

Now you're ready to send the machine back. A few things to get right here:

First, some vendors and manufacturers require you to return the miner in its original packaging. If you kept the box, great. If not, use a sturdy double-walled box with plenty of padding. Hash boards and control boards do not survive rough shipping without proper protection.

Second, determine whether you need to send the full unit or just the damaged component. Depending on the fault, you may only need to ship the defective hash board or control board � not the entire miner. Your vendor will confirm this.

Third, write your RMA number clearly on the outside of the package. Include it in a note inside the box as well. This prevents delays at the receiving end.

On shipping costs: you cover the cost of getting the miner to the vendor or manufacturer. However, most vendors cover the return shipping cost when sending the repaired or replaced unit back to you within the warranty period. That said, policies vary, so confirm this upfront.

Use a trackable shipping method. You want proof of delivery and visibility into where the machine is at all times.

Step 8 � Track Your Claim and Follow Up

After shipping, stay on top of your claim. Keep your shipping tracking number, your RMA number, and all correspondence in one place. Typical repair turnaround times range from 2 to 6 weeks depending on the manufacturer's location and repair backlog.

If you don't hear back within the expected window, follow up proactively. Reference your RMA number in every communication. Most manufacturers have support portals where you can check repair status directly.

What Happens With Out-of-Warranty Miners

If your machine is past its warranty period, the repair process is similar � but you're covering all costs. That means inbound shipping, repair labor, parts, and return shipping all come out of your pocket.

In 2026, out-of-warranty hash board repairs typically run $150 to $400 depending on the model and the extent of the damage. Full control board replacements can run higher. Before authorizing repairs, ask for a quote upfront. Sometimes it makes more financial sense to source a used replacement unit than to repair an aging machine.

Third-party repair shops are another option for out-of-warranty miners. These can be faster and cheaper than sending a unit back to the manufacturer, especially if you're outside Asia. Endless Mining offers consulting on the RMA and repair process � reach out for a detailed assessment of your situation.

Easy Ways to RMA Your Miners � Brand-Specific Quick Reference

Manufacturer

Warranty Check

Claim Portal

Standard Warranty

Bitmain (Antminer)

service.bitmain.com

Bitmain Support

12 months (BTC miners)

MicroBT (Whatsminer)

whatsminer.com

MicroBT Support

12 months

Canaan (Avalon)

canaan-creative.com

Canaan Support

12 months

Goldshell

goldshell.com

Goldshell Support

180 days

IceRiver

iceriver.io

IceRiver Support

Varies by model

Always verify current terms directly on the manufacturer's website, as policies do update.

FAQ � Easy Ways to RMA Your Miners

How long does an ASIC miner RMA typically take?

Most RMA repairs take 2 to 6 weeks from the time the manufacturer receives your unit. Turnaround depends on where the manufacturer's repair center is located, how backed up their queue is, and the severity of the fault. If parts need to be ordered, it can take longer. Always ask for an estimated timeline when you submit your claim.

Do I need to send back the whole miner or just the broken part?

It depends on the fault. For hash board failures, manufacturers often only need the defective hash board � not the entire unit. For control board issues, you may need to send the full machine. Your vendor or the manufacturer's support team will confirm what's required after reviewing your claim.

What if my RMA claim gets rejected?

If your claim is denied, ask for the specific reason in writing. Common rejection reasons include warranty voiding conditions like overclocking or liquid damage. If you believe the rejection is wrong, escalate with additional evidence. For out-of-warranty situations, ask for a repair quote instead.

Can I RMA a miner I bought secondhand?

Generally, yes � but the warranty is tied to the unit's serial number and born-on date, not the buyer. So if the original warranty period has expired, you're outside coverage regardless of when you purchased it. Always check warranty status before buying secondhand hardware.

What voids a miner's warranty fastest?

Overclocking is the fastest way to void your warranty. Running your miner above its rated specs creates extra heat and electrical stress that manufacturers specifically exclude from coverage. Unauthorized component swaps and liquid damage are close runners-up.

Is there a fee to open an RMA ticket?

No � opening an RMA ticket is free. However, you'll pay for return shipping to the vendor or manufacturer. Out-of-warranty repairs come with additional parts and labor costs. Always get a quote before authorizing any paid repair work.

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