Hybrid Heater Codes

Stiebel Eltron · Accelera 220 E / 300 E

Stiebel Eltron Accelera 220 E / 300 E error code E 2

What it means

The temperature sensor on the evaporator is faulty.

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 19

What Stiebel Eltron says to do

Notify a qualified contractor.

Last checked 2026-10-03.

Safety first

From the manufacturer's manual for this series.

Other Accelera 220 E / 300 E codes