Hormann SD8500 Garage Door Opener Circuit Board

SKU:: D437635

MSRP: $138.66

$126.05

(You Save $12.61)

Usually Ships 4 to 7 Business Days

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brand-name:: Hormann
brand-url:: /brand/hormann/
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Product Description
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The Hormann SD8500 Circuit Board (Part #D437635) is a genuine replacement component designed to restore reliable performance to your Hormann garage door opener. If your SD8500 unit is unresponsive after a power surge or lightning strike—especially if there’s no red indicator light on the motor—you may need this circuit board replacement (or in severe cases, a new motor assembly).

Built to OEM specifications, this circuit board ensures proper compatibility and long-lasting functionality, keeping your Hormann opener working as intended.

Product Highlights:

Part Number: D437635
Genuine Hormann replacement circuit board
Designed for the SD8500 garage door opener
Restores opener functionality after electrical failure
Durable construction for long-lasting performance

How to Replace the Circuit Board:

Unplug the opener from the power outlet.
Remove the light bulbs.
Take off the plastic head cover.
Locate the board at the back of the head assembly, secured by four plastic tabs.
Press the two tabs nearest the motor to release, then slide out from the other two tabs.
Disconnect the five wiring assemblies.
Reverse the process to install the new board.