---
product_id: 159491099
title: "Flow Sensor Tankless Water Heater"
brand: "navien"
price: "32206CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Navien"
url: https://www.desertcart.sn/products/159491099-flow-sensor-tankless-water-heater
store_origin: SN
region: Senegal
---

# Supports up to 180°F water temp Flange mount for secure installation ±2% measurement accuracy Flow Sensor Tankless Water Heater

**Brand:** navien
**Price:** 32206CFA
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your flow, never wait for hot water again!

## Quick Answers

- **What is this?** Flow Sensor Tankless Water Heater by navien
- **How much does it cost?** 32206CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/159491099-flow-sensor-tankless-water-heater)

## Best For

- navien enthusiasts

## Why This Product

- Trusted navien brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High-Temp Durability:** Built to withstand water temperatures up to 180°F, ensuring reliable operation under pressure.
- • **Genuine Navien Quality:** Original manufacturer part guarantees longevity and peak performance, avoiding costly replacements.
- • **Precision Flow Sensing:** Engineered for ±2% accuracy to optimize your tankless water heater’s performance.
- • **Seamless Compatibility:** Exact fit for Navien NP-240A and NR-240A models, restoring your system’s efficiency effortlessly.
- • **DIY-Friendly Installation:** Intermediate-level install with flange mount design—get your hot water flowing again without a pro.

## Overview

The Navien Flow Sensor 30010537A is a precision-engineered replacement part designed specifically for Navien tankless water heaters like the NP-240A and NR-240A. With ±2% measurement accuracy and a flange mount for secure installation, it supports water temperatures up to 180°F. This genuine Navien sensor restores optimal flow detection, eliminating intermittent cold water issues and enhancing your system’s efficiency with a straightforward DIY installation.

## Description

Navien Flow Sensor for Tankless Water Heater

Review: Exact fit for Navien NP-240A - This was an exact fit for a NAVIEN NP-240A unit. I uploaded a photo of the interior unit and highlighted the area where this installs. I would say this is a intermediate install so if you’re slightly mechanical, it’s not too difficult! The part was genuine, and the functionality was restored on my unit! I shared some photos of my unit to help other people in this situation. Have a great day!
Review: The perfect answer to our problem - We were experiencing intermittent cold water from our 9 year old Navien NR–240A tankless hot water heater. We even have the recirculation loop to keep hot water in the pipes every 30 minutes. In recent months, every time I went to do dishes at the kitchen sink, I would have to wait for an extremely long time to get hot water. Sometimes I would start with hot water and then it would run cold. If I turned on the shower too, I could force more demand on the water heater and get hot water sooner. I did some searching for answers on YouTube and found that these symptoms are textbook and common at about 9 years. This was a very easy DIY repair. Just a few simple tools, a Phillips screwdriver, channel-locks, wire cutters for zip ties, replacement zip ties. Just watch some guys demonstrating how it’s done. You have to close the right valves and have a bucket to drain water into. But you can do it. This part worked perfectly and now we have hot water again.

## Features

- Navien
- Flow
- Sensor
- 30010537A

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B018HDBA46 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #213,783 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #505 in Water Heater Replacement Parts #37,481 in Parts & Accessories |
| Brand | Navien |
| Customer Reviews | 4.7 4.7 out of 5 stars (188) |
| Date First Available | May 3, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 0.634 ounces |
| Item model number | 30010537 |
| Manufacturer | Navien |
| Material | Metal |
| Measurement Accuracy | ±2% |
| Mounting Type | Flange Mount |
| Output Type | Push-Pull |
| Package Dimensions | 6.97 x 2.48 x 2.32 inches |
| Part Number | 30010537A |
| Specific Uses For Product | water heating systems, indoor use |
| Style | Indoor Installation |
| UPC | 783325911953 785577110207 884954322162 |
| Upper Temperature Rating | 180 Degrees Fahrenheit |

## Product Details

- **Brand:** Navien
- **Material:** Metal
- **Measurement Accuracy:** ±2%
- **Mounting Type:** Flange Mount
- **Style:** Indoor Installation

## Images

![Flow Sensor Tankless Water Heater - Image 1](https://m.media-amazon.com/images/I/41vsgVlMFvL.jpg)

## Questions & Answers

**Q: Is this a direct replacement for flow sensor aass9exfs003c?**
A: yes

**Q: Is this compatible for model navien npe-180s?**
A: You have to dig out the manuals for both models to decide. Or, call the customer support @ Navien.

**Q: Is this compatible with model ch-240 (ng) asme?**
A: yes, This part is compatible with that model. I installed it in my water heater , fits and plugs in fine. The only problem I had was with the heater set up for on demand use, it had problems running on a small appliance...AKA bathroom sink. It did fine with larger appliance ( bathtub). When I set up my heater on recirculate it operates fine.

**Q: Will this work on the NR240?**
A: Yes, I have NR240

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exact fit for Navien NP-240A
*by S***A on April 12, 2025*

This was an exact fit for a NAVIEN NP-240A unit. I uploaded a photo of the interior unit and highlighted the area where this installs. I would say this is a intermediate install so if you’re slightly mechanical, it’s not too difficult! The part was genuine, and the functionality was restored on my unit! I shared some photos of my unit to help other people in this situation. Have a great day!

### ⭐⭐⭐⭐⭐ The perfect answer to our problem
*by P***S on April 12, 2023*

We were experiencing intermittent cold water from our 9 year old Navien NR–240A tankless hot water heater. We even have the recirculation loop to keep hot water in the pipes every 30 minutes. In recent months, every time I went to do dishes at the kitchen sink, I would have to wait for an extremely long time to get hot water. Sometimes I would start with hot water and then it would run cold. If I turned on the shower too, I could force more demand on the water heater and get hot water sooner. I did some searching for answers on YouTube and found that these symptoms are textbook and common at about 9 years. This was a very easy DIY repair. Just a few simple tools, a Phillips screwdriver, channel-locks, wire cutters for zip ties, replacement zip ties. Just watch some guys demonstrating how it’s done. You have to close the right valves and have a bucket to drain water into. But you can do it. This part worked perfectly and now we have hot water again.

### ⭐⭐⭐⭐⭐ Restored hot water and saved a ton of $$$
*by M***T on December 15, 2020*

Suddenly lost hot water, which with a family of 5 in the winter is rough (no hot showers!). Our model is the NR-240A and it was not displaying an error code. Performed a full maintenance list - cleaned the air intake, descaled via vinegar flush, cleaned the water filters - still nothing. Tried the trick to release the over-pressure valve to no avail. The burners would start to light for a couple seconds, but once the full demand started and the fan really kicked on, the burners would immediately stop. I read somewhere that no error code may likely point to a faulty flow sensor, so I took out the old flow sensor, performed a visual inspection and saw nothing notable. Soaked and cleaned with vinegar, blew out with an air compressor, and put it back in - still wouldn't heat. At that point gave this new part a try. Once you know what to do (I used youtube), replacing this part takes one minute. So I put in the new one and - it WORKED. I was so afraid it was something worse, like a failed internal recirculation pump... but replacing the flow sensor restored it 100%, at least for this situation. Family is now enjoying hot showers and happy once again.

## Frequently Bought Together

- Navien Flow Sensor Tankless Water Heater
- Navien 30009933A O-Ring Kit
- Navien 30004680A Flame Rod Assembly

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-26*