BlueStars Furnace Flame Sensor 2-Pack 62-23543-01 Steel Replacement

Description

Product Overview

The BlueStars 2‑Pack Furnace Flame Sensor (part number 62‑23543‑01) is engineered to replace the original flame detection component in a wide range of residential and light‑commercial gas furnaces. Each sensor measures approximately 4 inches by 1.6 inches and is positioned at a 90‑degree angle to monitor the presence of a burning flame within the combustion chamber. When the flame is detected, the sensor transmits a low‑voltage signal to the furnace control board, allowing the gas valve to remain open and the blower to operate. If the flame is absent, the sensor triggers a safety shutdown, preventing unburned gas from accumulating and protecting both the equipment and occupants.

Usage

This flame sensor is compatible with Rheem, Ruud, WeatherKing, Thermal Zone, DuroGuard, and many other furnace models that share the original part numbers 62‑23543‑01 through 62‑23543‑04. It is ideal for homeowners, HVAC technicians, and property managers who need a reliable replacement part to restore safe operation after a sensor failure or routine maintenance. The sensor performs optimally in typical heating environments ranging from 40 °F to 90 °F indoor ambient temperatures, and it tolerates the high‑temperature spikes that occur during furnace ignition cycles. Whether installed in a single‑family home, a multi‑unit apartment building, or a small commercial facility, the sensor delivers consistent flame detection performance.

Why Choose Us

BlueStars has a reputation for manufacturing high‑quality furnace components that meet or exceed OEM specifications. The flame sensor combines a stainless‑steel rod for superior heat resistance with a 100 % ceramic insulator that prevents signal shorting, ensuring accurate flame detection over the life of the part. Each sensor undergoes rigorous testing for temperature endurance, electrical conductivity, and mechanical durability before it leaves the factory. In addition, the product is backed by a lifetime warranty that covers any manufacturing defects, giving customers confidence that their investment is protected. Our dedicated technical support team is available to assist with installation questions, troubleshooting, and warranty claims, providing a seamless ownership experience.

Key Features

• Precise flame detection ensures furnace safety and efficient heating.
• Stainless‑steel rod provides excellent heat resistance and long‑term durability.
• Ceramic insulator prevents electrical shorting for reliable signal transmission.
• Wide compatibility fits multiple furnace brands and model series.
• Lifetime warranty and responsive customer support give peace of mind.

FAQ

How do I know if my furnace flame sensor needs replacement?

If the furnace repeatedly shuts off after ignition, displays an error code related to flame sensing, or produces a strong gas odor, the sensor may be faulty. A technician can test the sensor’s resistance with a multimeter; values outside the manufacturer’s range indicate replacement is required.

Can I install the sensor myself, or do I need a professional?

The sensor is designed for straightforward installation using basic hand tools. However, because the procedure involves turning off power, closing the gas valve, and handling electrical connections, many homeowners prefer to have a licensed HVAC technician perform the swap to ensure safety and compliance with local codes.

What is the difference between this sensor and the original OEM part?

BlueStars replicates the exact dimensions, electrical characteristics, and mounting geometry of the OEM sensor while using higher‑grade stainless steel and a full‑ceramic insulator. This results in equal or better performance and a longer service life compared with the original component.

Is the sensor covered by the lifetime warranty if I install it incorrectly?

The lifetime warranty applies to manufacturing defects only. Installation errors are not covered, but our support team can guide you through the correct installation steps to avoid such issues.

Will this sensor work with newer high‑efficiency furnaces?

Yes. The sensor’s electrical specifications match those of modern high‑efficiency units, and it has been tested in furnaces with variable‑speed blowers and advanced control boards. Always verify the part number compatibility list before purchase.