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6167 818 - 10
Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Replacing the HMI connecting cable
Incorrect routing of the cable can lead to heat damage
and impairment of the EMC properties.
For positioning and securing of the cable (fixing point
of the cable tie) see connecting cable installation
instructions.
Fault Messages
(continued)
Troubleshooting
Fault Messages
(continued)
Repairs
(continued)
Tank temperature sensor/outlet temperature sensor
1. Check lead and plug of tank temperature sensor
% or outlet temperature sensor $.
2. Disconnect wires of sensor plug.
3. Check the sensor resistance. Compare the resistance
with the value for the current temperature from the
following diagram.
In the event of severe deviation (> 10%), replace
the sensor.
Outside temperature sensor
1. Check the cable and plug of the outside temperature
sensor.
2. Disconnect wires 1 and 2 from terminal ! on the
wiring panel.
3. Check the sensor resistance. Compare the resistance
with the value for the current temperature from the
following diagram.
If the results are very different from the curve
(> 10 %), disconnect the wires from the sensor.
Repeat the test directly on the sensor.
Check the on-site lead. 2-core cable, length up to 115 ft
(35 m) with a cross-section of 16 AWG (1.5 mm
2
)
Depending on the result, replace the lead or the
outside temperature sensor.
Sensor type: NTC 10 kΩ
Outdoor temperature
Resistance in k Ohms
Sensor type: NTC 10 kΩ
Temperature sensors
Resistance in k Ohms
IMPORTANT
Flue gas temperature sensor
Supply temperature sensor
Tank temperature sensor
Outlet temperature sensor
Temperature sensor, low loss header
Outside temperature sensor
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