F27 - Pressure switch abnormality

What does F27 mean?

The pressure switch is indicating an abnormality. Protection control activates after the condition is sustained for 1 minute.

• Pressure switch malfunction.
• System pressure is outside normal operating limits.

Click steps to track your progress.

1. 1

   Inspect the pressure switch for proper operation and connections.

2. 2

   Verify system pressures are within the specified operating range.

3. 3

   Check for any obstructions that might affect system pressure.

4. 4

   Consult a service technician if the pressure switch remains abnormal.