
Blade fuse. ATC-3 (3 Amp)

Fuse for central air conditioners or heat pump disconnect boxes.
Specifications:
* FLNR type fuse
* 25 amps
* 250 volts
See below for alternate amperages

Fuse for central air conditioners or heat pump disconnect boxes.
Specifications:
* FLNR type fuse
* 45 amps
* 250 volts
See below for alternate amperages

Fuse for central air conditioners or heat pump disconnect boxes.
Specifications:
* FLNR type fuse
* 30 amps
* 250 volts
See below for alternate amperages

Fuse for central air conditioners or heat pump disconnect boxes.
Specifications:
* FLNR type fuse
* 50 amps
* 250 volts
See below for alternate amperages

Fuse for central air conditioners or heat pump disconnect boxes.
Specifications:
* FLNR type fuse
* 40 amps
* 250 volts
See below for alternate amperages

Fuse for central air conditioners or heat pump disconnect boxes.
Specifications:
* FLNR type fuse
* 35 amps
* 250 volts
See below for alternate amperages

Fuse for central air conditioners or heat pump disconnect boxes.
Specifications:
* FLNR type fuse
* 17-1/2 amps
* 250 volts
See below for alternate amperages

Fuse for central air conditioners or heat pump disconnect boxes.
Specifications:
* FLNR type fuse
* 15 amps
* 250 volts
See below for alternate amperages

Fuse for central air conditioners or heat pump disconnect boxes.
Specifications:
* FLNR type fuse
* 10 amps
* 250 volts
See below for alternate amperages
Ensure your Mars furnace operates smoothly with high-quality OEM fuse, thermal fuse, and breaker parts from Repair Clinic. Our selection includes genuine Mars parts designed to meet the exact specifications of your heating system, ensuring reliable performance and safety. Whether you're addressing issues like a furnace not turning on or troubleshooting persistent fault codes, having the right replacement parts on hand is crucial. Explore our wide range of fuses, including FLNR type fuses with varying amperages, to find the perfect match for your furnace model. With Repair Clinic, you gain access to a comprehensive resource for HVAC parts and expert support, empowering both homeowners and technicians to tackle furnace repairs confidently. Check out our related pages for other top brands like Carrier and Lennox to keep your heating system in top shape.
Repair Clinic offers a wide range of Mars furnace fuse, thermal fuse, and breaker parts to ensure your heating system runs smoothly. Whether you're dealing with issues like a furnace not turning on, a blower not running, or burners that won't stay lit, having the right replacement parts on hand is crucial. Order your Mars furnace parts by 9:00 PM ET and benefit from our same-day shipping service, ensuring you get what you need quickly. This fast shipping option helps homeowners and technicians complete repairs efficiently, minimizing downtime and discomfort. Explore our selection of genuine Mars parts, including various amperage fuses for central air conditioners or heat pump disconnect boxes. For more detailed repair guidance, visit our HVAC Parts page to learn more about common furnace issues and solutions.


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Identifying your furnace model number is essential for finding compatible parts and accurate repair help. Watch this video for tips on locating the model number, and visit our website's furnace repair section for troubleshooting tips, part testing guides, and part replacement videos tailored to your specific furnace.

Need help finding the right furnace parts? Repair Clinic's trained customer care specialists are available 7:00 AM to midnight EST, seven days a week. Whether you have questions about part compatibility or need assistance placing an order, our experts are here to help. The Repair Clinic customer care team is dedicated to ensuring your furnace is back in working order quickly and efficiently.

A furnace that fails to ignite can leave your home in the cold. Common issues include a faulty igniter, malfunctioning flame sensor, or a defective draft inducer fan motor. Replacing furnace filters and cleaning furnace parts can help prevent these problems.

Learn why your furnace isn't working by understanding its ignition sequence and identifying common faulty parts like the igniter, flame sensor, or control board. This article provides practical repair tips and insights into each component's role in the heating process.

A gas furnace that starts and then stops unexpectedly can be frustrating, especially during cold weather. This article explains five common causes, including issues with the flame sensor, pressure switch, control board, draft inducer fan motor, or air flow. Learn how each cause may impact your furnace's operation and get tips to resolve the problem.