NIBE · SMO 20 Control Module
The F2120 outdoor unit is currently performing a preheating cycle for the compressor. This is a normal operation to ensure the compressor starts safely and efficiently, especially in colder conditions.
Click steps to track your progress.
No action is required; this is a normal operational status message.
Wait for the preheating cycle to complete naturally; the system will proceed with normal operation afterward.
Ensure the system has a stable power supply during this process.