Grundfos Grundfos Pump Error Code 34

Grundfos Pump Minor Thermal

Model: Grundfos Pump | Code: 34

Applicable Systems
MAGNA1

Symptoms

Temperature low. The liquid temperature is below the warning threshold.

Possible Causes

  • Cold environment or insufficient heating
  • Temperature sensor fault giving low reading

Troubleshooting Steps

  1. Step 1: Check the liquid temperature
    Temperature is below the warning threshold
  2. Step 2: Verify the temperature sensor reading
    Sensor reading is correct or faulty

How to Reset

To reset: Increase the temperature or fix the sensor, then reset.

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Source: Grundfos Pump Troubleshooting Guide, Grundfos Group

Category: Pump