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PROTECH 62-23543-01 Genuine OEM Furnace Flame Sensor 4.3" Total Length

PROTECH 62-23543-01 Genuine OEM Furnace Flame Sensor 4.3" Total Length

Low stock: 1 left

Regular price $29.99 USD
Regular price Sale price $29.99 USD
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Key Features & Specifications

  • Genuine Rheem/Ruud PROTECH™ Flame Sensor replacement.

  • 4.3-inch total length with 1/4" male spade connector.

  • High-grade ceramic insulation for extreme heat resistance.

  • Critical safety component to prevent gas buildup during ignition.

  • Direct-fit OEM part ensures accurate microamp signal readings.

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Specifications

ERP ID 48250
Unit Size
Cubic Measurement 0.4273
Dimensional Weight 5
Height 6.75
Length 11.7
Weight 0.04
Width 9.35
Description
Brand PROTECH™
For Use With Flame Detection
Includes Product Only
Ratings/Certifications
Country of Origin USA
Prop 65 Yes
Packaging
UOM EA
Specifications
EAN 0662766147926
UPC 662766147926

description

PROTECH 62-23543-01 Genuine OEM Furnace Flame Sensor 4.3" Total Length

The PROTECH™ 62-23543-01 is a precision-engineered Genuine OEM Flame Sensor designed for Rheem, Ruud, and WeatherKing gas furnaces. This critical safety component acts as the "eyes" of the furnace ignition system, detecting the presence of a flame once the burners ignite. If the sensor fails to verify a flame within seconds, it signals the control board to shut off the gas valve, preventing hazardous gas buildup and ensuring safe system operation.

Technical Performance:

Constructed from high-grade, heat-resistant metal and high-density alumina ceramic insulation, this sensor is built to withstand the intense thermal cycling of a furnace burner. Being a Genuine OEM part ensures the electrode is positioned at the exact height and angle required by the manufacturer. This precision prevents "nuisance trips" or ignition lockouts caused by incorrect microamp readings—a common issue with generic, non-OEM sensors that lack the specific metal conductivity required by Protech™ control boards.

Key Features and Function:

  • Precision Flame Detection: Sends a consistent microamp signal to the control board to verify burner ignition and maintain safe operation.
  • Genuine OEM Reliability & Fitment: Guaranteed to align perfectly with the burner assembly in Rheem/Ruud units without manual bending or modification.
  • Safety Integration: Immediately shuts down gas flow if a flame is not detected, protecting your home from unburned gas accumulation.
  • High-Temperature Durability: Features a heavy-duty ceramic insulator and high-nickel alloy rod to resist oxidation and carbon buildup.

Product Details and Key Specifications:

  • Part Number: 62-23543-01 (Replaces 62-23543-01)
  • Manufacturer: Rheem / Ruud (PROTECH™ Genuine OEM)
  • Part Type: Furnace Flame Sensor / Flame Probe
  • Total Length: 4.31 Inches
  • Rod Length: 3.31 Inches (Metal Probe)
  • Connection: 1/4" Male Spade Terminal
  • Mounting: Single-hole offset bracket
  • Shipping Weight: 0.15 lbs

🛠️ HVAC Depot Pro Tip: The Microamp Check

If your furnace lights for 2-5 seconds and then shuts off, the flame sensor is likely dirty or failing. Before replacing, you can try cleaning the metal rod gently with a fine abrasive pad (like a Scotch-Brite pad)—never use sandpaper, as it leaves silica residue that can insulate the rod. However, if the ceramic is cracked or the metal is heavily pitted, a new 62-23543-01 is required to restore reliable ignition.

Cross-Reference & Compatibility:

The 62-23543-01 is a direct OEM replacement for the following part numbers:

  • OEM Numbers: 62-23543-01, 622354301
  • UPC: 662766127119

Extensive Model Compatibility List:

  • R92 Series: R92PA, R92TA, R92MS
  • R95 Series: R95PA, R95TA, R95MS
  • R96 Series: R96PA, R96TA
  • U96 Series: U96VA, U97VA
  • R80 Series: R801PA, R801SA, R801TA, R802PA
  • Classic Series: RGPE, RGPQ, RGRA, RGRB, RGRC, RGRS, RGRT, RGTA, RGTB

Specification

Refund policy

Refund & Return Policy

Last Updated: June 2026

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We accept returns within 30 days of delivery.

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Approved returns may be subject to a 20% restocking fee.

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If approved:

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Return Shipping

Customers are responsible for return shipping costs unless the return is the result of:

  • Our shipping error,
  • A defective product,
  • A damaged product received upon delivery.

Original shipping charges are non-refundable.

We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

Professional Installation Notice

Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

Michel & Siso are very knowledgeable and explain everything to where I could understand! Amazing experience! Thank you will always come here for any AC needs. Trustworthy and excellent customer service.

Celest G.
Verified Customer
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