Grundfos Grundfos Pump Error Code 27

Grundfos Pump Major System

Model: Grundfos Pump | Code: 27

Applicable Systems
MAGNA1

Symptoms

System pressure high. The discharge pressure exceeds the warning threshold.

Possible Causes

  • Discharge valve partially closed or blocked
  • System pressure setpoint too high

Troubleshooting Steps

  1. Step 1: Check the discharge valve and system pressure
    Valve is restricted or pressure is too high
  2. Step 2: Open the valve or adjust the pressure setpoint
    Pressure is within the normal range

How to Reset

To reset: Fix the valve or setpoint, then reset the controller.

Source: Grundfos Pump Troubleshooting Guide, Grundfos Group

Category: Pump