LP alarm — Low Pressure in the Heating System

What does LP alarm mean?

The heat pump has detected a low-pressure condition within the heating or brine system. This can lead to inefficient operation or potential damage if not addressed.

• Leak in the system.
• Insufficient system fill.
• Faulty pressure sensor.
• Circulation pump issue.

Click steps to track your progress.

1. 1

   Access the 'ALARM LOG' (Menu 3.4) on the display to view details of the LP alarm.

2. 2

   Navigate to the 'info / action' section for the LP alarm (via the general alarm menu) for specific advice.

3. 3

   Attempt to 'reset alarm' in the display.

4. 4

   If the alarm persists or returns, check the system pressure gauge and consider if the system needs refilling (if you are trained to do so).

5. 5

   Contact your installer if the low pressure issue cannot be resolved or if the alarm returns.