Hybrid Heater Codes

Stiebel Eltron · Accelera 220 E / 300 E

Stiebel Eltron Accelera 220 E / 300 E error code 32

What it means

Either: The appliance is operating with an empty tank or the appliance is not delivering heat. Or: The anode current is interrupted. The appliance does not heat up.

How it shows: Service (wrench) symbol flashing

Source: Operation and Installation - DHW heat pump water heater Accelera 220 E / Accelera 300 E (linked as 'Installation Manual'), A 312097-46347-0064, page 18

What Stiebel Eltron says to do

If the tank is empty: Fill the appliance with water. The fault code disappears and the appliance starts. If the anode current is interrupted: The contractor needs to check the connection of the impressed current anode and the internal wiring.

Last checked 2026-10-03.

Safety first

From the manufacturer's manual for this series.

The same code on other models

Codes mean different things on different heaters. Match the series to the model number on your rating label.

Other Accelera 220 E / 300 E codes