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Troubleshooting
Logamatic EMS RC35 programming unit - Subject to technical modifications
48
10
10 Troubleshooting
This fault table lists possible system faults, i.e. faults in EMS components. The heating system keeps
operating as long as possible in the event of a system fault; in other words, heating can continue.
Only use original Buderus spare parts. Losses caused by the use of parts not supplied
by Buderus are excluded from the Buderus warranty.
The fault displays are subject to the specific type of boiler used.
Abbreviations used:
SC = Fault code; x = heating circuit with number x, e.g. A23 for heating circuit 3
FC = Fault code
HCx = Heating circuit with the number x
SC FC
Events
display
Effect on control
characteristics
Possible cause Remedy
A01 800 Outside
sensor is
defect.
The minimum outside
temperature is applied.
Temperature sensor is
incorrectly connected
or fitted.
Breakage or short cir-
cuit in the sensor lead.
Temperature sensor is
faulty.
B Check sensor
connection and
sensor lead.
B Check sensor
mounting.
B Compare resistance
values with the
sensor curve.
A01 808 DHW sensor
1 is defect.
DHW heating has
stopped.
Temperature sensor is
incorrectly connected
or fitted.
Breakage or short cir-
cuit in the sensor lead.
Temperature sensor is
faulty.
B Check sensor
connection and
sensor lead.
B Check sensor
mounting.
B Compare resistance
values with the
sensor curve.
A01 809 DHW sensor
2 is defect.
Tab. 21 Fault table
48


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Others manual(s) of Buderus Logamatic EMS RC35

Buderus Logamatic EMS RC35 User Manual - English - 60 pages

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Buderus Logamatic EMS RC35 Installation Guide - Dutch - 48 pages


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