Quick answers to questions about ordering, compatibility, and installation.
Restore your hvac system’s performance with the Genuine MRCOOL Replacement Transformer (Part #17400306000058). Specifically engineered for 18,000 BTU, 24,000 BTU, and 36,000 BTU MRCOOL models, this dual-voltage transformer powers vital control boards and circuitry, ensuring reliable operation of your HVAC system.
If your unit is experiencing issues like no display, power failure, or won’t start—this transformer is the most common and effective solution.
| Specification | Details |
|---|---|
| Part Number | 17400306000058 |
| Input Voltage | 220V AC |
| Output Voltages | 11V AC @ 800mA & 24V AC @ 1.5A |
| System Compatibility | MRCOOL 18k, 24k, and 36k Split Systems |
| Other Brands | Also used in select Carrier, Midea, Lennox |
| Weight | ~4 lbs |
| Dimensions | Approx. 4″ x 4″ x 3″ |
| Installation Type | Plug-and-play (professional recommended) |
As a trusted nationwide MRCOOL dealer, we provide authentic OEM parts, expert support, and fast, secure shipping direct to your door. Whether you're a homeowner, contractor, or HVAC technician—get the part you need from the source you can count on
Order the MRCOOL Replacement Transformer 17400306000058 TodayDon't let a faulty transformer disrupt your comfort. Choose the reliable solution trusted by DIYers and pros across the country. In stock and ready to ship—only at MRCOOL DIY Direct.
Quick answers to questions about ordering, compatibility, and installation.
Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.
Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
Manufacturer installation guides and documentation are included or available upon request for most products.
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.
Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
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