--- product_id: 17962080 title: "Ecosmart FSA QC MEDLRG Replacement Part" brand: "ecosmart" price: "Ā£30.01" currency: GBP in_stock: true reviews_count: 8 url: https://www.desertcart.co.uk/products/17962080-ecosmart-fsa-qc-medlrg-replacement-part store_origin: GB region: United Kingdom --- # Eco-Friendly Design Compact Dimensions Flow Sensor Assembly Ecosmart FSA QC MEDLRG Replacement Part **Brand:** ecosmart **Price:** Ā£30.01 **Availability:** āœ… In Stock ## Summary > šŸ’§ Upgrade Your Flow, Elevate Your Eco Game! ## Quick Answers - **What is this?** Ecosmart FSA QC MEDLRG Replacement Part by ecosmart - **How much does it cost?** Ā£30.01 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/17962080-ecosmart-fsa-qc-medlrg-replacement-part) ## Best For - ecosmart enthusiasts ## Why This Product - Trusted ecosmart brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - ā€¢ **šŸ“¦ Easy Installation:** No batteries required, making setup a breeze. - ā€¢ **šŸŒ± Sustainable Choice:** EcoSmart's commitment to energy efficiency and sustainability. - ā€¢ **šŸ›”ļø Reliable Warranty:** 1-year warranty for peace of mind. - ā€¢ **šŸ“ Lightweight & Compact:** Weighs only 2.89 ounces, perfect for any installation. - ā€¢ **šŸ”§ Precision Engineering:** Designed specifically for ECO 18, 24, 27, and 36 models. ## Overview The EcoSmartFSA QC MEDLRG Replacement Part is a high-quality flow sensor assembly designed for seamless compatibility with EcoSmart Tankless Electric Water Heaters. Weighing just 2.89 ounces and measuring 3 x 2 x 1.5 inches, this eco-friendly component ensures efficient water flow while supporting sustainable energy practices. With a 1-year warranty and no batteries required, it's the perfect solution for your water heating needs. ## Description Ecosmart FSA QC MEDLRG Replacement Part ## Features - Flow Sensor assembly for ECO 18 , ECO 24, ECO 27 and ECO 36 - Ecosmart Tankless Electric Water Heater Replacement Part ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Ecosmart Water Heaters | | Part Number | FSA QC MEDLRG | | Item Weight | 2.89 ounces | | Product Dimensions | 3 x 2 x 1.5 inches | | Country of Origin | China | | Item model number | FSA QC MEDLRG | | Item Package Quantity | 1 | | Included Components | Ecosmart FSA QC MEDLRG Flow Sensor | | Batteries Required? | No | | Warranty Description | 1 year | ## Images ![Ecosmart FSA QC MEDLRG Replacement Part - Image 1](https://m.media-amazon.com/images/I/71jm0Y-b2FL.jpg) ![Ecosmart FSA QC MEDLRG Replacement Part - Image 2](https://m.media-amazon.com/images/I/41lgwAqxKzL.jpg) ![Ecosmart FSA QC MEDLRG Replacement Part - Image 3](https://m.media-amazon.com/images/I/81jV5YQtcZL.jpg) ## Questions & Answers **Q: My current fsa has water leaking from the screw on lid. would a replacement part solve that little problem?** A: Replacing the ring seal should stop the leak **Q: What are the oring seal sizes for the fsa including the screw on lid? i wish eco smart was considerate of it's customer needs and provide this info.** A: The whole unit is horrible Get an old school tank like I did. Not worth it. **Q: What would cause kitchen sink to get hot but not the shower running one at a time? All 3 heating elements are good. Thank you in advance.** A: Waterless heater operates on flow rate principle comprised of 3 separate heating element inside copper manifold. The plastic internal fins parts of flow meter will melt. Ecosmart FSA QC MEDLRG ECO 24 Replacement Part $18.84. Recommended also purchasing part which controls on/off power to heating element. Technical support can walk you through troubleshooting steps. **Q: Will this fit Rheem rtex24?** A: I have a Raheem RETEX-27 and it works on mine. I bought a spare to have one on hand. Iā€™m not sure if it fits the rtex24 ## Customer Reviews ### ā­ā­ā­ā­ā­ Worked as described, easy to install *by J***H on November 29, 2022* I love the ecosmart tankless heater that this part goes to and was devastated when it stopped working. After doing some troubleshooting at the guidance of the manufacturer's website I determined that this part was malfunctioning. I was able to remove the original part in under 15 minutes with just a screwdriver and a couple of plumbers wrenches. I found that the rubber gasket was not properly seated from the manufacturer which had allowed water into the chip housing and the computer chip had corroded.I ordered this replacement, it took no time at all to put it in place and it has worked like a dream ever since. ### ā­ā­ā­ā­ā­ Good part *by J***E on February 3, 2025* My tankless water heater, an eco smart eco 18, wouldn't come on when I turned the hot water on. I feared the worst. I called EcoSmart and told them the symptoms I was having, which was the LED screen wasn't even coming on at all. He told me to change a small fuse above the LED panel. He said that so quick and he was so sure. He was wrong. So I asked grok AI on X. I told it I had power to the unit. It's not the breaker. I had sufficient water pressure and it told me change the flow sensor. So I took the old flow sensor apart and the impeller was warped in the magnet was all worn away. I ordered this product from Amazon and received it in 2 days on a Sunday even. I installed it in less than 10 minutes, I turned the water back on from the main and turned the faucet on hot. That's when I learned something else, I actually have hot water now real hot. It seems when the impeller in this flow sensor starts to go the machine kicks down in heat for safety reasons so it doesn't overheat. It happens at such a slow rate. You don't realize you're losing your hot water, after installing this simple part, The water is so hot. I had to turn it down from 140 to 130. Good part, simple install and not only does it work it gave us actual hot water again. Five stars ### ā­ā­ā­ā­ā­ Works Great *by D***A on October 3, 2024* Sure beat buying a new water heater. ## Frequently Bought Together - Ecosmart FSA QC MEDLRG Replacement Part - HE 90240 Heating Element, 3 Pack Replacement for EcoSmart ECO 18 27 36, 9KW 240V Heating Element for Electric Tankless Water Heaters, Screw-In, Copper - Ecosmart THRM QC XLRG Thermistor --- ## Why Shop on Desertcart? - šŸ›’ **Trusted by 1.3+ Million Shoppers** ā€” Serving international shoppers since 2016 - šŸŒ **Shop Globally** ā€” Access 737+ million products across 21 categories - šŸ’° **No Hidden Fees** ā€” All customs, duties, and taxes included in the price - šŸ”„ **15-Day Free Returns** ā€” Hassle-free returns (30 days for PRO members) - šŸ”’ **Secure Payments** ā€” Trusted payment options with buyer protection - ā­ **TrustPilot Rated 4.5/5** ā€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/17962080-ecosmart-fsa-qc-medlrg-replacement-part](https://www.desertcart.co.uk/products/17962080-ecosmart-fsa-qc-medlrg-replacement-part) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-02*