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Quick specs
Part Number
47-100436-02
Part Type
Air Handler / Furnace Control Board
Brand
Rheem
Voltage
25 VAC
Fits
Rheem/Ruud single-stage air handlers with X-13 blower motors
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
SKU: 47-100436-02 · Category: PCB CONTROL BOARD ASSEMBLY

RHEEM PCB Control Board 47-100436-02

Genuine Rheem/ProTech Board·X-13 Motor Compatible

$104.37

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  • Free shipping — most items ship by the next day

Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.

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SKU: 47-100436-02 · Category: PCB CONTROL BOARD ASSEMBLY
RHEEM PCB Control Board 47-100436-02
Quick specs
Part Number
47-100436-02
Part Type
Air Handler / Furnace Control Board
Brand
Rheem
Voltage
25 VAC
Fits
Rheem/Ruud single-stage air handlers with X-13 blower motors
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.

RHEEM PCB Control Board 47-100436-02

Restore reliable performance to your HVAC system with the genuine Rheem (ProTech) 47-100436-02 Air Handler / Furnace Control Board. This compact, OEM-designed board is specifically engineered for systems using X-13 (ECMx) constant torque blower motors, providing precise control over blower operation, timing sequences, and system efficiency.

Key Features

  • Designed for X-13 Motors: Optimizes performance of ECMx / X-13 blower motors in single-stage air handlers and compatible furnaces.
  • Reliable Timing & Sequencing: Includes standard blower ON/OFF delays (e.g., 0 seconds on G or Y1 call; 30-45 seconds off delays for heat) for smooth, efficient operation and reduced wear.
  • Compact & Durable: Small footprint (approx. 5″ x 2.25″ x 1.5″), lightweight (~0.13–0.15 lbs), with fused protection (uses 3A fuse like 44-101986-01).
  • Easy Drop-In Replacement: Direct OEM fit with familiar wiring and harness compatibility for quick installation.
  • 24V Operation: 25 VAC, 50/60 Hz compatibility for standard HVAC control circuits.

Benefits

  • Improved Efficiency & Comfort: Ensures proper blower speed and timing, enhancing airflow, temperature consistency, and overall system energy efficiency.
  • Enhanced Reliability: Prevents common issues like erratic fan behavior, failure to start, or premature shutdowns, reducing service calls.
  • OEM Quality & Longevity: Factory-authentic part maintains system warranty integrity and delivers original performance levels (unlike some generics).
  • Cost-Effective Repair: Revives aging air handlers or furnaces without the expense of full system replacement.
  • Peace of Mind: Backed by Rheem’s reputation for durable HVAC components.

Compatible Manufacturers / Brands

This board is a direct or cross-referenced fit for:

  • Rheem
  • Ruud
  • Sure Comfort
  • WeatherKing
  • Corsair (and select others under the Rheem family)

It also serves as a replacement for White-Rodgers equivalents like 48X21-811 and other Rheem/Ruud part numbers (e.g., 47-102077-02, 47-102077-05, 47-102077-05-00, 1139-151, 1139-83-151).

Compatible Systems

Primarily used in Rheem and Ruud single-stage air handlers (including many RH1T, RH2T, RHLA, RHLL, RBHP, EH1P, EH1T, RF1T, SH1C, SH2T, and similar series). It fits a wide range of residential HVAC setups with X-13 blower motors, such as:

  • Air handlers
  • Heat pump air handlers
  • Compatible furnaces and split systems

Note: Always verify exact model/serial number compatibility (hundreds of air handler models listed across suppliers).

Upgrade or repair your system today with this reliable OEM control board. Perfect for HVAC technicians and homeowners seeking genuine Rheem performance.

Key features
  • Genuine Rheem/ProTech Board — air handler and furnace control
  • X-13 Motor Compatible — for constant torque ECMx blower motors
  • Precise Blower Control — restores reliable performance
  • Compact OEM Design — direct replacement 47-100436-02

Why homeowners choose NAW

Genuine OEM parts

Every part we sell is the real thing — authorized, factory-genuine, and backed by the full manufacturer warranty.

Easy online ordering

Find your part by model number, add to cart, and get it delivered to your door — no middleman, no markup.

30-day hassle-free returns

Ordered the wrong part? Send it back within 30 days.

Help when you need it

Not sure if this is the right part? Call us at (888) 292-0874 and we’ll help you find the correct replacement.
Specifications
Voltage 25 VAC
Frequency 50/60 Hz
Dimensions 5 in x 2.25 in x 1.5 in (approx.)
Weight ~0.13–0.15 lbs
Fuse 3A
Blower Delays 0 seconds on G or Y1 call; 30-45 seconds off delays for heat

What buyers are saying

Verified reviews from customers who purchased this product.

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5.0
5 verified reviews
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BH
Buck H

I was blown away by how seamlessly the RHEEM Air Handler Control Board 47-100436-02 restored full system functionality with outstanding precision. The price was unbeatable for such a high-quality component that delivers top-notch performance every time!

OW
Orlando W

I couldn’t believe the difference the Rheem Air Handler Control Board 47-100436-02 made in my system—it’s like having a brand new unit! The performance is outstanding, and with the excellent price, I can’t recommend this upgrade highly enough for anyone looking to enhance their HVAC efficiency!

YG
Yosef G

The Rheem Air Handler Control Board 47-100436-02 delivers incredible performance and efficiency, making it a game-changer for any HVAC setup! At such an excellent price, it offers top-notch reliability and seamless operation that exceeded all expectations.

MV
Marshall V

I’m blown away by the Rheem Air Handler Control Board 47-100436-02! It’s a fantastic find with an amazing price—its performance has been flawless, keeping my system running smoothly and efficiently.

JM
James M

The RHEEM AIR HANDLER CONTROL BOARD 47-100436-02 completely revitalized my HVAC system, providing flawless control and seamless performance. The price was astonishingly low for such high-quality equipment, making it a must-have upgrade for anyone seeking top-notch reliability and efficiency.