Combiplus Connection; Check Outlet Temperature Sensor; Replacing The Flow Limiter - Viessmann Vitodens 100-W WB1B Series Installation And Service Instructions Manual

Troubleshooting

CombiPLUS Connection

Check outlet temperature sensor

Replacing the flow limiter

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Vitodens 100-W, WB1B Installation & Service
1. Pull the leads from outlet temperature sensor A.
2. Check the sensor resistance and compare it with
the curve.
3. Replace the sensor in case of severe deviation.
Temperature
Note: Water can leak when replacing the outlet
temperature sensor. Shut off the cold water
supply. Drain the DHW line and the plate type
heat exchanger (DHW side).
1. Drain the boiler and combiPLUS.
2. Remove screws from the cover and remove cover.
3. Undo screws A.
4. Remove the cap B.
5. Remove faulty flow limiter C.
6. Select new flow limiter C corresponding to boiler
size (see boiler rating plate). See page 26.
7. Insert new flow regulator C.
8. Fit new cap B provided.