Viessmann E8 Fault Hot Water Sensor +352 20 60 22 22 Weber &
Viessmann E8 fault Vitodens 100-W / 200-W: NTC hot water sensor faulty. No hot water. Sensor replacement Luxembourg.
Error code E8 on a Viessmann boiler (Vitodens 100-W, 200-W) indicates a fault with the NTC hot water temperature sensor. The boiler continues to heat normally but disables hot water production for safety.
The NTC sensor is a common part. Failure is often due to limescale buildup (Luxembourg water is very hard) or natural wear. Quick, affordable replacement. On-site quote provided.
Less urgent than a total breakdown, but should be repaired within the week to restore hot water.
- Viessmann E8 fault diagnosis
- NTC hot water sensor replacement
- Compatible Vitodens 100-W and 200-W
- Descaling if necessary
- Fast intervention Luxembourg
FAQ
Does heating still work with E8 fault?
Yes. E8 only disables hot water production. Radiator and underfloor heating continue normally.
Can I continue using the boiler with E8?
For heating, yes. But you won't have hot water. Repair within the week — an unreplaced faulty NTC sensor can eventually affect overall regulation.
How much does a Viessmann Vitodens NTC sensor cost?
Common part. Quick, affordable replacement. A quote is provided on site before any work.
Why do NTC sensors often fail in Luxembourg?
Luxembourg water is very hard (high calcium content). Limescale accumulates around the sensor and disrupts its readings. A water softener limits this problem.
Does Weber & Fils replace Viessmann NTC sensors?
Yes, across the Grand Duchy. Call +352 20 60 22 22 to arrange an intervention.