E317/162 — Wrong power supply electrical frequency

What does E317/162 mean?

The boiler has detected an incorrect electrical frequency (Hz) from the main power supply.

• Instability or incorrect frequency from the electrical grid.
• Issue with the boiler's internal power supply detection.

Click steps to track your progress.

1. 1

   Turn off the main power supply to the boiler, wait 30 seconds, then turn it back on.

2. 2

   Check if other electrical appliances in your property are functioning normally.

3. 3

   If the error persists, a qualified electrician or boiler technician should check the incoming electrical supply frequency.