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Bosch Singular 5200 Service Manual

Bosch Singular 5200
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Service Manual
Singular Combi Boiler - BTC 439002301 A (12.2021)
E4 Error - Wire Check
1. Check the connection of the wire.
Figure 78 Control Board
Figure 79 Pressure Sensor
E4 Error - Pressure Sensor Check
1. Measure the resistance of the Pressure sensor.
2. Check the pressure sensor input voltage at the control board.
Normal:    DC 5 V
Abnormal:  0 V
3. Replace the control board if the voltage output from the control board is
abnormal.
Figure 80
V

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Bosch Singular 5200 Specifications

General IconGeneral
BrandBosch
ModelSingular 5200
CategoryBoiler
LanguageEnglish

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