Tecnoeka Er9

What does Tecnoeka Er9 mean?

The temperature display shows Er9 and the oven only continues working in convection mode (dry heat). Press the START/STOP key to turn off the alarm. It is triggered when the heat generator thermal safety device has activated, or when the heat generator level sensor is covered with limescale, so steam functions are disabled while dry convection cooking remains available.

Symptoms

• The temperature display shows the message Er9
• The oven only continues working in convection mode (dry heat)
• Steam-assisted functions are unavailable
• The alarm can be turned off with the START/STOP key

Common causes

• Heat generator thermal safety device activated
• Heat generator level sensor covered with limescale
• Limescale build-up affecting the steam generator water level reading

Diagnostic steps

1. 01

   Turn off the alarm

   Press the START/STOP key to turn off the Er9 alarm once the message appears.

2. 02

   Use convection in the meantime

   Recognise the oven only continues in convection mode (dry heat), so plan dry cooking until steam functions are restored.

3. 03

   Isolate before service

   Switch off the oven at the upstream magnetothermal safety switch and let it cool before any work on the steam generator.

4. 04

   Call a qualified technician

   Have a qualified technician repair the activated thermal safety device or the limescale-covered level sensor, as the manual specifies.

When to call a professional

Call a qualified technician for Er9, since the manual ties it to an activated heat generator thermal safety device or a limescale-covered level sensor and instructs you to have a qualified technician repair it. Both involve the steam generator's safety and water-level systems, which must be inspected and serviced by trained personnel with the appliance isolated and fully cooled.