Grundfos Grundfos Pump Error Code 33

Grundfos Pump Major Thermal

Model: Grundfos Pump | Code: 33

Applicable Systems
MAGNA1

Symptoms

Temperature high. The liquid temperature exceeds the warning threshold.

Possible Causes

  • Process temperature too high
  • Insufficient cooling in the system

Troubleshooting Steps

  1. Step 1: Check the liquid temperature
    Temperature exceeds the warning threshold
  2. Step 2: Improve cooling or reduce the heat input
    Temperature drops within range

How to Reset

To reset: Reduce the temperature, then reset the controller.

Source: Grundfos Pump Troubleshooting Guide, Grundfos Group

Category: Pump