Facebook Pixel
Sign-Up Bonus
Get 500 Reward Points instantly when you join.
Redeem Instantly
50 points = $1 off at checkout.
Earn as You Shop
$1 spent = 1 point every time you order.
Member Perks
Unlock exclusive member-only savings and offers.

Register and Earn 500 Reward Points
Toggle Nav
Search
Toggle Nav
Join Our Loyalty Program
main product photo

Noritz NPJ231 CB-PCB Control Board

Be the first to review this product
Special Price $261.78 Regular Price $290.57
Out of stock
SKU
NPJ231
The NORITZ NPJ231 Control Board is an electronic controller used to monitor the activities of the element and regulate communication among the internal components in HVAC systems. It uses a printed circuit board to receive signals from sensors and safety parts, processes that information, and sends instructions to the ignition components, valves, and other controls while working with water heaters and hydronic HVAC systems with the CB-PCB control board layout. It is mounted in the equipment control compartment to which wiring harnesses are attached to the circuit terminals and power supply leads.
Add to Wish List
HVAC Controls & Electrical, Control Boards & Modules
Manufacturer:
https://www.partshnc.com/media/catalog/product/n/p/npj231.jpg
Write Your Own Review
You're reviewing:Noritz NPJ231 CB-PCB Control Board
Your Rating
Product Questions (2)
Customer Questions
What maintenance is required for the Noritz NPJ231 Control Board?

Keep the board clean and free from dust or moisture. Inspect wiring connections for tightness and damage. Periodic visual checks help ensure accurate operation and prevent control errors in the heating system.

What are common issues with the Noritz NPJ231 Control Board?

  • Loose or faulty wiring connections.
  • System error codes or communication failures.
  • Malfunctioning relays or sensors.
  • Inconsistent heating cycles or operational errors.

Installation Steps

Step 1: Turn off power to the unit and disconnect all electrical sources to prevent shock.

Step 2: Remove the existing control board by unscrewing mounting screws and carefully disconnecting wiring.

Step 3: Install the new board, aligning connectors and securing screws.

Step 4: Reconnect wiring according to the original configuration.

Step 5: Restore power and test the system to ensure proper operation.