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Quick specs
Part Number
HA-P024 / RTE10654
Also Known As
CB NF SML
Part Type
Control board
Application
Compact and point-of-use electric tankless water heaters
Installation
Plug-and-play with existing connectors
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
SKU: HA-P024 · Category: CONTROL BOARDS

RHEEM EEMAX & ECOSMART Control Board HA-P024 RTE10654

Genuine Rheem OEM Board·Central Control Unit

$101.01

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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: HA-P024 · Category: CONTROL BOARDS
RHEEM EEMAX & ECOSMART Control Board HA-P024 RTE10654
Quick specs
Part Number
HA-P024 / RTE10654
Also Known As
CB NF SML
Part Type
Control board
Application
Compact and point-of-use electric tankless water heaters
Installation
Plug-and-play with existing connectors
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.

RHEEM EEMAX & ECOSMART Control Board HA-P024 RTE10654

Keep your compact tankless water heater operating reliably with the genuine Rheem Control Board HA-P024, also known as CB NF SML. This OEM replacement circuit board acts as the central control unit, managing power to the heating elements, monitoring temperature, and ensuring safe, efficient performance for consistent on-demand hot water.

Key Features & Benefits

  • Precise Temperature & Power Regulation: Intelligently controls heating based on demand for stable hot water output and optimal energy efficiency.
  • Easy Plug-and-Play Installation: Designed for straightforward replacement with existing connectors — perfect for DIY repairs or professional service.
  • High-Quality OEM Construction: Built to exact manufacturer specifications for durability and long-term reliability.
  • Solves Common Problems: Fixes issues such as no hot water, unit failing to power on, inconsistent temperatures, or related error codes.

Compatibility

This control board is a direct replacement for smaller non-flow or point-of-use style electric tankless water heaters, including:

  • EcoSmart ECO 8 and ECO 11
  • Eemax and Rheem compact / small models (e.g., HA008240, HA011240, HA013240 variants)
  • Richmond and other compatible point-of-use tankless units

Restore reliable hot water to your bathroom, kitchen, or utility sink with this high-quality HA-P024 Control Board. Ideal for maintaining compact tankless systems in residential applications.

Always verify compatibility with your exact model number before purchasing.

Key features
  • Genuine Rheem OEM Board — HA-P024 (CB NF SML) for compact tankless heaters
  • Central Control Unit — manages power to the heating elements
  • Precise Temperature Regulation — heats based on demand for consistent hot water
  • Safe, Efficient Operation — Rheem, Eemax and EcoSmart compatible

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.

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