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Vitodens 100-W, B1HA series & B1KA Combi Installation/Service
Boiler Connection
Start-up and Maintenance
Remove front panel
Check boiler temperature sensor
1. Loosen retaining screws, screws are captive and do
not need to be fully removed.
2. Remove the front panel.
Resistance in K
Boiler water temperature
1. Disconnect cables from boiler temperature sensor
A
.
2. Measure resistance of the boiler temperature sensor
and compare with resistance/boiler water temperature
curve
shown.
3. If the value measured differs significantly, replace the
sensor.
WARNING
The boiler temperature sensor is immersed in the
heating water (risk of scalding).
Drain the boiler before replacing the sensor.
Troubleshooting
