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Maintenance required symbol: pixel-style open-ended spanner drawn diagonally from lower left to upper right
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Heating & air conditioning

Maintenance required

Pixel-style open-ended spanner drawn diagonally from lower left to upper right. · also called “maintenance”, “service”, “service due”, “spanner”, “wrench”

What it means on vaillant

Maintenance required

The boiler needs maintenance work but is not in fault and keeps running normally. Contact a competent heating engineer. If the water pressure is flashing at the same time, top up the heating water. Details of the message are in the boiler's status display (Live Monitor).

Source · Manufacturer manual Vaillant ecoTEC plus VU 446/5-5 and VU 606/5-5 boiler operating instructions · checked

Where it appears

Heating & air conditioning

Questions about the Maintenance required symbol

What does the Maintenance required symbol mean on the Vaillant ecoTEC plus VU 446/5-5 and VU 606/5-5 boiler (VU 446/5-5)?
The boiler needs maintenance work but is not in fault and keeps running normally. Contact a competent heating engineer. If the water pressure is flashing at the same time, top up the heating water. Details of the message are in the boiler's status display (Live Monitor).
What does the Maintenance required symbol look like?
Pixel-style open-ended spanner drawn diagonally from lower left to upper right. It is also called “maintenance”, “service”, “service due”, “spanner” and “wrench”.
Which products show the Maintenance required symbol?
It is recorded on Vaillant ecoTEC plus VU 446/5-5 and VU 606/5-5 boiler (VU 446/5-5).

Checked against the source · · How we verify

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