OBSERVATION BOILER SELF CHECK

Set Appliance State:

Mains Power Off

Boiler ON/OFF pushed in, ON position
Ensure No demands

WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure

Mains Power On

Observation:

Allow the boiler to complete its self-check, this will take approximately 30 seconds, the boiler flow temperature should then be displayed (see note 2.)

vm vitodens 100-w b1kc 35 kw combi dis flow temp .jpg

vm-vitodens-100-w-b1kc-35-kw-combi-ani-fault-code-f2-.gif

Note.
1. Some fault codes will only occur with a demand.
2. The boiler will carry out a self-check every time the power is reinstated or appliance has been reset, any applied demands will not commence until self-check has completed..
3. This boiler has a DHW preheat mode (COMFORT), when power is removed to the boiler, it will default to preheat Off mode (ECO).
4. To reset boiler, tap and hold R (touch screen) for approx. 2 s.

Flow temperature displayed

Example fault code displayed

Ensure boiler is in ECO mode (see note 3.)

If a fault code is present or the display does not operate correctly then choose that option from below.

Reset button, see note 4.