Alarm 74 — Supply voltage too high

What does 74 mean?

The electrical supply voltage to the pump is above the specified operating range, which can potentially damage the pump's electronics. The pump may automatically reset and restart once the fault is cleared.

• Excessive power supply to the pump.
• Voltage spikes or surges.
• Fluctuations in the main power grid.

Click steps to track your progress.

1. 1

   Check that the main power supply to the pump is within the voltage range specified for the pump model.

2. 2

   Consult a qualified electrician to measure the supply voltage at the pump's connection point.

3. 3

   Address any external electrical issues that are causing the high voltage.