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Tuttnauer 2540M Manual Benchtop Autoclave – New
Facilities that need dependable steam sterilization without unnecessary electronic complexity can benefit from the Tuttnauer 2540M Manual Benchtop Autoclave. Combining a 23-liter chamber, straightforward manual controls, durable stainless steel construction, four trays, and standard 120 V electrical operation, the 2540M provides a proven sterilization solution for laboratories, veterinary facilities, educational institutions, medical practices, and other professional environments.
American Instrument Exchange is a distributor of brand-new Tuttnauer autoclaves and sterilizers, supplying customers throughout Massachusetts, New England, the Northeast, and across the United States. The Tuttnauer 2540M is supplied new from the manufacturer and includes Tuttnauer’s current 1-year parts-and-labor manufacturer’s warranty.
Unlike newer touchscreen and vacuum-assisted autoclaves, the 2540M is built around simplicity. Its manual controls allow trained users to manage routine sterilization without relying on complex electronics, network connectivity, or advanced software. For organizations that value proven construction, straightforward operation, and long-term serviceability, the 2540M remains a practical new-equipment choice.
Standard unwrapped cycle as fast as approximately 14 minutes from a hot start
Approximately 30-minute standard unwrapped cycle from a cold start
Electropolished stainless steel chamber and door
Double safety door-locking mechanism
Dual safety thermostat with automatic overheat protection
Front-mounted reservoir drain valve
Color-coded, intuitive control panel
120 V, 50–60 Hz operation
Approximately 1,400 W power requirement
Compact benchtop configuration
Brand new from Tuttnauer
Includes 1-year Tuttnauer parts-and-labor warranty
Overview
The Tuttnauer 2540M is a manual tabletop steam autoclave designed for facilities that need reliable sterilization in a relatively simple and durable format. Its 23-liter chamber provides useful capacity for instruments, glassware, containers, and other compatible heat- and moisture-resistant materials while retaining dimensions suitable for a laboratory or clinical countertop.
The 2540M is part of Tuttnauer’s long-running manual tabletop autoclave line. Rather than replacing proven functionality with unnecessary complexity, the current model continues to emphasize direct operator control, durable chamber construction, straightforward maintenance, and reliable steam sterilization. That makes it particularly attractive to facilities with trained users and well-established sterilization procedures.
Its cylindrical chamber measures approximately 10 inches in diameter by 19 inches deep. This gives the 2540M more capacity than smaller tabletop models while remaining compact enough for many existing workspaces.
Four trays allow loads to be arranged across multiple levels within the chamber. Tuttnauer lists tray dimensions of approximately 16.3 inches long × 6.7 inches wide × 0.8 inches high, along with capacity for approximately three full-size and three half-size standard cassettes.
The 2540M’s manual design is a major part of its appeal. Facilities that do not need touchscreen controls, Wi-Fi connectivity, electronic traceability, or vacuum-assisted processing can purchase a brand-new sterilizer focused on the core functions they actually use.
Tuttnauer also incorporates several important safety features into the design. A double safety mechanism helps prevent the door from opening while the chamber is pressurized, while dual safety thermostats and automatic shutoff help protect the system from overheating.
For organizations replacing an aging manual autoclave, the 2540M offers the familiarity of a proven platform with the advantage of purchasing new equipment directly through an authorized distribution channel.
Tuttnauer 2540M Common Applications
Sterilization of compatible reusable laboratory instruments
Processing of laboratory glassware
Sterilization of appropriate unwrapped instruments
Veterinary instrument processing
Academic teaching and research laboratories
Medical and clinical instrument sterilization
Microbiology laboratory support
Biotechnology research workflows
Pharmaceutical and industrial quality-control applications
Tuttnauer 2540M Ideal Laboratory and Facility Environments
The Tuttnauer 2540M is particularly well suited for organizations that need reliable tabletop steam sterilization but do not require sophisticated electronic automation.
Research laboratories, academic facilities, veterinary organizations, and smaller professional practices may appreciate the combination of a relatively large 23-liter chamber and straightforward operator controls. For facilities with established procedures, the manual format can provide all the functionality needed for routine compatible loads without adding complexity that may never be used.
The 2540M can also be an attractive choice for laboratories looking for a dependable backup sterilizer. Larger institutions sometimes benefit from maintaining a simpler tabletop system for smaller or routine loads while reserving higher-capacity sterilizers for bulk processing.
Its 120 V electrical configuration also helps simplify installation compared with larger systems requiring 208 V or 240 V service. This can make the 2540M particularly practical for laboratories expanding into existing spaces where electrical infrastructure is already established.
The model is also a logical fit for customers who value serviceability and long-term familiarity. Because the 2540M is based on a long-established Tuttnauer platform, many operators and service personnel are already familiar with its basic design and maintenance requirements.
For customers throughout Massachusetts and New England, American Instrument Exchange can help compare the 2540M with automatic and vacuum-assisted Tuttnauer models based on chamber capacity, workflow, load type, electrical requirements, and budget.
Manual Steam Sterilization
The Tuttnauer 2540M uses saturated steam under pressure to sterilize compatible heat- and moisture-resistant materials.
Unlike automatic microprocessor-controlled systems, the 2540M gives trained operators direct control over the cycle. This can be advantageous in facilities where sterilization procedures are already well established and staff prefer a simpler operating platform.
The system uses gravity displacement rather than active pre-vacuum air removal. As steam enters the chamber, cooler air is displaced from the sterilization environment. Proper loading is therefore important to support steam circulation and reduce the possibility of trapped air.
For straightforward solid loads, this approach remains practical and widely used. Facilities that routinely process more complex porous, hollow, or vacuum-dependent loads should compare the 2540M with Tuttnauer models designed for active vacuum processing.
The manual format also means that operator training and adherence to standard operating procedures are especially important. Facilities should always follow approved loading, cycle, monitoring, and maintenance procedures for the materials being processed.
Tuttnauer 2540M Chamber Capacity and Workflow
The Tuttnauer 2540M provides approximately 23 liters, or 6 gallons, of chamber capacity. The cylindrical chamber measures approximately 10 inches in diameter by 19 inches deep.
This chamber geometry provides useful loading flexibility for a tabletop sterilizer. Wider glassware, instrument trays, and compatible containers may fit more easily than in smaller 8- or 9-inch chamber systems.
The autoclave accommodates four trays measuring approximately 16.3 inches long × 6.7 inches wide × 0.8 inches high. Tuttnauer also lists standard cassette capacity at approximately three full-size and three half-size cassettes.
Cycle turnaround depends on starting temperature and load. Tuttnauer lists a standard unwrapped cycle at approximately 30 minutes from a cold start and approximately 14 minutes from a hot start, with actual time varying according to instrument load.
That hot-start performance can be useful in facilities running several loads during the day. Once the chamber is already warm, subsequent cycles can be significantly faster than the first cycle from ambient temperature.
For laboratories evaluating throughput, the combination of chamber capacity and cycle time matters more than either specification alone. The 2540M provides a useful middle ground between very small tabletop autoclaves and much larger floor-standing sterilizers.
Choosing the Right New Tuttnauer Autoclave
The Tuttnauer 2540M is a strong choice for facilities that prioritize reliability, manual simplicity, chamber capacity, and straightforward installation.
The most important question is whether manual operation matches the facility’s workflow. Organizations with trained staff and standardized sterilization procedures may prefer the directness of the 2540M. Facilities seeking push-button automation, electronic cycle records, remote monitoring, or advanced vacuum processing may be better served by a T-Top, T-Edge, or another automated Tuttnauer platform.
Chamber size is another major consideration. The 23-liter capacity provides meaningful loading space without requiring a large sterilizer footprint. Facilities that find smaller tabletop units restrictive may benefit from the 10-inch chamber diameter and 19-inch depth.
Electrical service is also relatively straightforward. The current U.S. 2540M is rated for 120 V, 50–60 Hz operation at approximately 1,400 W and 12 A.
Buyers should also consider long-term operating preferences. Some organizations deliberately choose simpler equipment because it reduces dependence on software, network connectivity, or complex electronic controls.
For facilities whose needs are straightforward, the 2540M allows them to purchase a brand-new Tuttnauer autoclave without paying for features that do not materially improve their workflow.
American Instrument Exchange can help customers compare the 2540M with other new Tuttnauer autoclaves based on load type, chamber size, desired automation, available utilities, and budget.
21.5 in D × 20 in W × 14.4 in H (545 × 510 × 365 mm)
Chamber Construction
Electropolished stainless steel
Door Construction
Electropolished stainless steel
Number of Trays
4
Tray Dimensions
16.3 in L × 6.7 in W × 0.8 in H (415 × 170 × 20 mm)
Standard Cassette Capacity
3 full-size and 3 half-size cassettes
Sterilization Method
Saturated steam under pressure
Air Removal
Gravity displacement
Control System
Manual / electromechanical
Standard Unwrapped Cycle – Cold Start
Approximately 30 minutes
Standard Unwrapped Cycle – Hot Start
Approximately 14 minutes
Safety Lock
Double safety door-locking mechanism
Overheat Protection
Dual safety thermostat and automatic shutoff
Reservoir Drain
Front-mounted drain valve
Electrical Requirements
120 V, 50–60 Hz
Current
Approximately 12 A
Power Consumption
Approximately 1,400 W
Plumbing Requirements
No central building steam supply required
Installation Type
Benchtop
Shipping Weight
Approximately 85 lb / 39 kg
Warranty
1-year Tuttnauer parts-and-labor warranty
Current specifications are based on Tuttnauer’s U.S. 2540M product information. Customers should confirm current production configuration, included trays and accessories, electrical requirements, shipping details, and warranty terms with American Instrument Exchange when ordering.
Installation and Utility Requirements
The Tuttnauer 2540M is relatively simple to install compared with larger floor-standing autoclaves.
The current U.S. model operates on 120 V, 50–60 Hz power and draws approximately 12 A at 1,400 W. An appropriate dedicated circuit should be provided according to local electrical requirements and the equipment data plate.
The autoclave generates steam internally and does not require a central building steam supply.
The supporting work surface should be level, stable, and capable of safely supporting the autoclave plus process water and the maximum expected load.
Adequate space should also be provided for ventilation, front-door movement, loading, service access, and routine reservoir drainage.
The reservoir drain valve is located at the front of the machine, allowing water to be removed without requiring access to the rear of the sterilizer.
Water quality should meet Tuttnauer requirements. Inappropriate water can contribute to mineral deposits, chamber scale, valve contamination, heating-system problems, and increased maintenance requirements.
Routine inspection of the gasket, safety mechanisms, valves, chamber, reservoir, and heating system can help support reliable long-term operation.
Why Buy a New Tuttnauer 2540M from American Instrument Exchange?
American Instrument Exchange supplies brand-new Tuttnauer autoclaves directly to laboratories and professional facilities throughout New England, the Northeast, and across the United States. New Tuttnauer equipment purchased through American Instrument Exchange includes the applicable manufacturer’s warranty, including Tuttnauer’s current 1-year parts-and-labor warranty for the 2540M.
The 2540M is an especially good example of why model selection should be based on workflow rather than simply buying the newest technology available. Many laboratories do not need Wi-Fi, electronic traceability, touchscreen controls, or vacuum-assisted processing. For those organizations, the 2540M provides proven steam sterilization with fewer layers of complexity.
American Instrument Exchange can help customers evaluate chamber capacity, electrical service, load types, desired automation, and available space before ordering.
Our Haverhill, Massachusetts location gives laboratories, universities, veterinary facilities, healthcare organizations, biotechnology companies, and other customers throughout Massachusetts and New England a regional source for new Tuttnauer sterilization equipment.
American Instrument Exchange also supplies complementary laboratory equipment including biosafety cabinets, CO₂ incubators, centrifuges, laboratory refrigerators, freezers, ovens, glassware washers, ultrasonic cleaners, and other equipment used in research and professional facilities.
Because American Instrument Exchange offers both new Tuttnauer autoclaves and professionally refurbished sterilizers, customers can compare new and refurbished solutions based on budget, warranty preferences, required features, and project timeline.
Frequently Asked Questions
Is the Tuttnauer 2540M sold new by American Instrument Exchange?
Yes. American Instrument Exchange offers the 2540M brand new from Tuttnauer. It is not used or refurbished. American Instrument Exchange also advertises new Tuttnauer sterilizers with manufacturer warranty coverage.
Does the new Tuttnauer 2540M include a manufacturer’s warranty?
Yes. Tuttnauer currently lists a 1-year parts-and-labor warranty for the 2540M.
What does the “M” mean in Tuttnauer 2540M?
The 2540M is Tuttnauer’s manual version of the 2540 tabletop autoclave platform. It uses straightforward manual/electromechanical controls rather than the more automated interfaces found on electronic and current connected models.
What is the chamber capacity of the Tuttnauer 2540M?
The chamber capacity is approximately 23 liters, or 6 gallons.
What are the chamber dimensions?
The chamber measures approximately 10 inches in diameter by 19 inches deep, or 254 mm × 475 mm.
How many trays does the 2540M include?
The 2540M includes four trays measuring approximately 16.3 inches long × 6.7 inches wide × 0.8 inches high.
How fast is the Tuttnauer 2540M?
Tuttnauer lists the standard unwrapped cycle at approximately 30 minutes from a cold start and approximately 14 minutes from a hot start. Actual cycle time varies depending on instrument load.
Is the Tuttnauer 2540M automatic?
No. The 2540M is a manual autoclave. It is designed for trained users who prefer direct, straightforward control rather than a fully automated electronic interface.
Is the Tuttnauer 2540M a pre-vacuum autoclave?
No. The 2540M uses gravity displacement and does not incorporate an active pre-vacuum pump.
Does the 2540M require a building steam connection?
No. The system generates steam internally and does not require a central building steam supply.
What electrical service does the Tuttnauer 2540M require?
The current U.S. model operates on 120 V, 50–60 Hz power and is rated at approximately 1,400 W and 12 A.
How large is the Tuttnauer 2540M?
Tuttnauer lists overall dimensions of approximately 21.5 inches deep × 20 inches wide × 14.4 inches high.
Should I choose the 2540M or a newer T-Top or T-Edge autoclave?
The 2540M is a strong choice when straightforward manual operation, 23-liter capacity, and lower complexity are priorities. T-Top and T-Edge models may be better suited for facilities that need automated cycles, digital documentation, connectivity, vacuum-assisted processing, or more advanced workflow features.
Is the 2540M a good choice for a laboratory?
It can be an excellent fit for laboratories that process compatible solid instruments, glassware, and other routine steam-sterilizable materials and do not require active pre-vacuum processing.
Can American Instrument Exchange supply the Tuttnauer 2540M throughout New England?
Yes. American Instrument Exchange is based in Haverhill, Massachusetts and supplies new Tuttnauer equipment to customers throughout Massachusetts, New Hampshire, Maine, Vermont, Rhode Island, Connecticut, the broader Northeast, and nationwide.
Can American Instrument Exchange help compare new Tuttnauer models?
Yes. American Instrument Exchange can help customers compare manual, automatic, T-Top, T-Edge, and other Tuttnauer autoclaves based on chamber capacity, load types, utilities, automation requirements, and budget.
Testing Procedures for Used and Refurbished Laboratory Equipment
Ensure Accuracy, Safety, and Dependable Performance Across Applications
At American Instrument Exchange, all used and refurbished laboratory equipment undergoes a rigorous, multi-point testing protocol to ensure optimal performance, operational safety, and long-term reliability. Whether the equipment is destined for research, diagnostics, quality control, or production environments, our thorough inspection and testing process is designed to meet the highest standards of laboratory excellence.
Why Testing Used Lab Equipment Is Essential
Before any refurbished laboratory equipment is returned to service, it must be carefully tested to verify:
• Functional integrity and operational performance
• Setpoint accuracy and repeatability (where applicable)
• User interface responsiveness and control features
Proper testing reduces the risk of equipment failure, measurement inaccuracies, or user hazards—helping to ensure consistent results in clinical, academic, biotech, and industrial labs.
Our standardized lab equipment testing procedures are tailored to each equipment type, ensuring every unit meets manufacturer specifications and industry benchmarks.
Key Testing Procedures for Refurbished and Used Laboratory Equipment
1. Initial Visual Inspection
• Examine equipment housing for signs of wear, corrosion, or damage
• Check ports, power cords, and exterior components for tampering or deterioration
• Verify that internal and external parts (racks, shelves, connectors, accessories) are present and undamaged
2. Functional Startup and Operational Testing
• Power on the equipment and verify startup diagnostics
• Confirm functionality of displays, buttons, switches, and control panels
• Run basic functions to confirm proper response and behavior under standard operating conditions
3. Testing and Performance Verification
• Test internal sensors or control systems using industry-standard tools
• Perform operational tests to validate accuracy and consistency
• Verify key performance specifications such as temperature control, timing, speed, or measurement outputs, depending on equipment type
4. Mechanical and Electrical System Testing
• Evaluate motors, pumps, fans, or other moving parts for smooth operation
• Inspect and test wiring, relays, fuses, and circuit boards for safety and reliability
• Test power delivery and grounding compliance
5. Safety and Compliance Checks
• Ensure equipment is grounded and insulated to meet laboratory safety standards
• Test alarms, interlocks, emergency stops, or safety shutdown systems if applicable
6. Final Quality Assurance and Documentation
• Perform extended runtime testing
• Document operational logs, testing results, and any repairs or adjustments made
• Complete a final inspection, thorough cleaning, and packaging for delivery
Trusted Quality from American Instrument Exchange
With over 50 years of experience in laboratory equipment refurbishment, American Instrument Exchange is committed to delivering certified, lab-ready instruments backed by expert testing. Our testing protocols ensure that each piece of equipment—regardless of type—is safe, accurate, and dependable from day one.
Whether you're equipping a startup lab or expanding a high-throughput facility, you can count on our refurbished laboratory equipment to perform with precision and reliability.
Refurbishment Protocol for Used Laboratory Equipment from American Instrument Exchange
At American Instrument Exchange, every piece of used laboratory equipment we offer undergoes a multi-step refurbishment process. Whether it's an analytical balance, centrifuge, freezer, oven, or any other essential lab instrument, our goal is to restore each unit to peak performance—ensuring accuracy, safety, and long-term reliability in scientific, clinical, industrial, and academic environments.
Why Choose Refurbished Lab Equipment from American Instrument Exchange?
• Thoroughly tested for performance, precision, and safety
• Backed by a warranty
• A cost-effective alternative to new equipment
• Environmentally sustainable through equipment reuse and waste reduction
• Serviced by expert technicians with decades of laboratory equipment experience
Step-by-Step Refurbishment Protocol
Every instrument and system refurbished at American Instrument Exchange follows a detailed, industry-aligned process:
1. Initial Intake & Inspection
• Complete visual and structural inspection for cosmetic damage, wear, or corrosion
• Mechanical assessment of hinges, seals, fasteners, motors, and moving parts
• Missing components and damaged items are documented for repair or replacement
2. Cleaning and Decontamination
• Full internal and external cleaning using non-abrasive, lab-safe solutions
• Removal of biological, chemical, or particulate contamination
• Disassembly and cleaning of removable parts such as trays, shelves, and filters
3. Mechanical and Electrical Repair
• Replacement or repair of worn or broken mechanical parts
• Evaluation and servicing of control panels, sensors, switches, and displays
• Testing and repair of electrical wiring, fuses, circuit boards, and power supplies
4. Functional System Testing
• Assessment of all major functions specific to the equipment type (e.g., speed, temperature, force, weight, timing)
• Operation of control interfaces, programming menus, and digital displays
• Verification of stabilization time, responsiveness, and user input reliability
5. Testing and Performance Verification
• Testing of internal sensors, controllers, and measurement systems using certified tools
• Multi-point testing to ensure repeatability, accuracy, and performance consistency
• Confirmation of user-defined setpoints, timing sequences, or programmable cycles
6. Safety and Compliance Checks
• Testing of safety interlocks, alarms, and over-limit protection systems (as applicable)
• Electrical safety inspections, including grounding and insulation verification
7. Final Quality Assurance and Documentation
• Full operational testing under simulated lab conditions
• Completion of performance benchmarks, testing results, and repair logs
• Final cleaning and visual inspection
Trust the Experts at American Instrument Exchange
With over 50 years of experience in the laboratory equipment industry, American Instrument Exchange is a trusted leader in high-quality refurbished lab instruments. Our refurbishment protocols ensure that every piece of equipment we sell is lab-ready—offering the precision, performance, and durability your team can count on.
Whether you’re outfitting a new lab or expanding an existing operation, choose American Instrument Exchange for tested, warrantied, and cost-effective laboratory equipment.
Warranty Information
All used equipment sold by American Instrument Exchange is refurbished/reconditioned, tested to meet specifications, cleaned, and comes with a 90-day warranty from the date of shipment unless otherwise specified. New products include a warranty from the manufacturer. Your warranty is only valid if you have paid your invoice. If your invoice is over 30 days old, warranty work will not be performed until your invoice is paid in full. American Instrument Exchange is not liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products,
Exceptions include international sales and items that are agreed to be sold with a lesser warranty or items that are agreed to be sold “as is.”
Should there be visible shipping damage to packaging or concealed shipping damage to item(s) supplied, buyer must communicate such damage to the delivering entity or carrier upon receipt first and to American Instrument the same day item is accepted / signed for. Failure to do so voids warranty. Customer decision to involve / procure third party or OEM service other than American Instrument or AIE assigned vendors to resolve in-warranty instrument failure or defect without first placing a service call to American Instrument voids warranty.
Return & Cancellation Policy
American Instrument Exchange will authorize the return of and issue a full refund for any equipment that is not working as represented and could not be replaced or repaired to the customer’s satisfaction by AIE or a representative of AIE during the warranty period. Returns without prior authorization and an RMA number will not be accepted.
Customers are responsible for proper packaging of the equipment and all included accessories. American Instrument will pay for insurance and shipping costs. Non-inventory items bought specifically to fill customer orders may possibly be returned, but on a case by case basis.
Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues may be subject to a Restocking/Cancellation Fee of 20% or more and responsible for shipping costs for both the delivery and return.
Ongoing and Extended Support Options
American Instrument Exchange is able to provide additional repair and support services outside the warranty terms for most products that sell.
For biosafety cabinets, clean benches, chemical fume hoods, and other clean air products our team at AIE Laboratory Services can provide certifications, repairs, decontaminations, and other services for customers throughout New England, and guidance and limited technical assistance for any customers in the US and Canada for new or refurbished biosafety cabinets purchased from American Instrument Exchange.
For all other products, the repair service team at American Instrument Exchange can provide both field and depot repair evaluations. We can easily schedule and coordinate the pick-up and transportation of your malfunctioning equipment. By offering hourly rates lower than most OEM service providers and eliminating travel time for technicians, we help reduce repair costs. Furthermore, our lab depot repair service minimizes or eliminates scheduling delays. Our experienced service technicians are qualified to restore your equipment to factory specifications.
Yes, all equipment from American Instrument Exchange comes with a warranty. Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.
How do you test and recondition the equipment?
Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality. We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.
How do products ship from American Instrument Exchange?
We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.
Return and order cancellation policy
American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.
Are discounts available for educational or non-profit institutions, or for bulk purchases?
Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.
How does your price matching policy work?
We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.
Can I see the equipment in person before committing to a purchase?
Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.
1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.
Can I ship products that I purchased elsewhere to American Instrument for repair?
Yes – please see our repair services page for more information.
