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

Lennox Y8437 Outdoor Control Board 17122000A19508

Rating:
5 5 1
1  Review Add Your Review
Special Price $336.11 Regular Price $560.95
In stock
SKU
Y8437
The Lennox Y8437 Outdoor Control Board is an electronic control component used in outdoor condenser units to coordinate cooling operation and control communication in HVAC systems. It is based on the concept of getting signals through thermostats, temperature sensors, and safety switches, processing them through circuit pathways, and the control configuration 17122000A19508 in the board to control the work of the condensers and the sequence of components. It is mounted in the outside unit's electrical compartment and is interconnected with wiring harnesses, relays, and fan or compressor circuits.
Add to Wish List
HVAC Controls & Electrical, Control Boards & Modules
Manufacturer:
https://www.partshnc.com/media/catalog/product/y/8/y8437.jpg
Write Your Own Review
You're reviewing:Lennox Y8437 Outdoor Control Board 17122000A19508
Your Rating
Product Questions (2)
Customer Questions
What maintenance is required for the Lennox Y8437 Control Board?

Inspect the board periodically for dust, corrosion, or loose connections. Ensure all wiring is secure and components are dry. Keeping it clean and protected helps prevent control errors and maintains safe, reliable operation.

What are common issues with the Lennox Y8437 Control Board?

  • Failure to start the outdoor unit.
  • Faulty or intermittent signal to components.
  • Burned or damaged circuitry.
  • LED error codes indicating malfunctions.

Installation Steps

Step 1: Turn off all power to the HVAC unit before beginning installation.

Step 2: Remove the access panel to locate the existing outdoor control board.

Step 3: Disconnect all wiring from the old board, noting their positions.

Step 4: Remove the old board and mount the new control board securely in place.

Step 5: Reconnect all wiring exactly as originally configured.

Step 6: Replace the access panel, restore power, and verify proper system operation.