NIBE PCBA Interface Card, Part No. 518036

The PCBA Interface Card 518036 is an internal printed circuit board used inside the NIBE SMO 10 controller. It handles communication between the SMO 10 and connected heat pump components, accessories, and sensors.

Core Functions
•     Provides interface communication between SMO 10 and external modules
•     Manages I/O signals, accessory control, and system integration
•     Replaces faulty or damaged interface boards inside the SMO 10
•     Ensures stable operation of multi‑heat‑pump systems

Compatibility
•     SMO 10

When You Need This Part
Typical symptoms indicating a failed SMO 10 interface board include:
•     SMO 10 not communicating with heat pump or accessories
•     Random system resets
•     Missing accessory menus
•     Fault codes related to communication
•     No response from connected modules (e.g., pool, cooling, ventilation)