Alarm 10 — Communication fault between electronic parts

What does 10 mean?

There is a communication problem between different electronic components inside the pump. The pump may automatically reset and restart once the fault is cleared.

• Internal electronic communication failure.
• Temporary disruption in internal data exchange.

Click steps to track your progress.

1. 1

   If the pump does not reset automatically, try cycling the power off and on at the main switch.

2. 2

   Check if the pump is running in 'Forced pumping' mode (Alarm 29), as this can sometimes relate to communication issues.

3. 3

   If the fault persists after a power cycle, replacement of the pump or assistance from GRUNDFOS SERVICE is needed.