The Nibe Liquid Level Switch (Product Code: 818334) is a complete condensate/liquid level safety device used in Nibe heat pumps to prevent overflow and protect the system. 

Key Details
•     Product Code: 818334
•     Component Type: Liquid/condensate level switch (complete assembly)
•     Monitors condensate or liquid levels inside the heat pump.
•     Provides a safety cut‑off if water reaches a critical level, preventing overflow or 

Applications
•     Installed in Nibe heat pumps and HVAC systems with condensate trays or drainage systems.
•     Ensures safe operation by preventing water damage to electronics or surrounding areas.
•     Works as part of the safety circuit in the unit’s control system.

Note
•     Installation should be performed by a qualified technician, as it involves integration with the heat pump’s safety and control circuits.
•     Always confirm model compatibility before ordering, since Nibe uses different safety modules across product lines.
•     If your system shows condensate safety faults, this part is often the required replacement.