Troubleshooting Steps; Changing Room Temperature - Viessmann Vitodens 100-W B1HA 26Vitodens 100-W B1HA 35Vitodens 100-W B1KA 35 Installation And Service Instructions Manual

Troubleshooting

Troubleshooting Steps

Changing Room Temperature

54
Diagnosis
Correction
Vitodens 100-W, B1HA series & B1KA Combi Installation/Service
1. Establish fault message or diagnose behavior
of system.
2. Look for corresponding cause of fault in the
diagnostics table.
3. Find corrective measures in the table.
4. Perform corrective measures (page 58 to 63).
Note: See page 39 for an overview of controls,
indicators and system components.
In case a separate external room temperature controller
(thermostat) is installed, the desired room temperature
will be adjusted using this device.
Make adjustments using the appropriate operating
instructions only.
Note: lf thermostatic radiator valves are installed in the
room where the control is installed they must be
fully open.
In case the room temperature setting on the separate
room temperature controller is not sufficient to achieve
the desired room temperature (e.g. during a particularly
cold winter), the boiler water temperature can be adjusted
accordingly.