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Bluetooth disconnect

Bluetooth disconnect - App loses connection to pump

Grundfos · ALPHA3 Pump

What does Bluetooth disconnect mean?

The Grundfos GO Balance app disconnects from the ALPHA3 pump. This often occurs when the Bluetooth signal becomes too weak, especially when moving the smart device across different rooms during use.

Common Causes

  • Weak Bluetooth signal between the smart device and the pump.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Move your smart device closer to the Grundfos ALPHA3 pump to strengthen the Bluetooth signal.

  2. 2

    Avoid moving too far from the pump while using the app for balancing or settings.

  3. 3

    If you need to move between rooms, consider using an ALPHA Reader as a Bluetooth extender to maintain connection.

Browse all codes in this manual (22)
Verified technical data. Last updated: April 2026

Related Faults

157Real-time clock out of order (157) - Internal clock malfunction40, 75Undervoltage (40, 75) - Supply voltage is too low43Turbine operation (43) - Other water sources are flowing through the stopped pump
Source: Grundfos ALPHA3 Pump
Open Manual (Page 18)Search more codes in this manual