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9 Faults
No. Description D1 D2 Extra
119 Analogue input: Invalid measurement value of the
reference voltage
The measured values of the reference voltage out-
puts of the fail-safe analogue inputs do not match on
the main processor and watchdog processor.
– Reset fault
– If the fault still exists:
Send fault number and diagnostic code to the
technical support.
– Replace the device
Input number Own reference R = 0
Reset
120 - 183 Internal fault
– Reset fault
– If the fault still exists:
Send fault number and diagnostic code to the
technical support.
– Replace the device
184 Too many signals at one terminal
Several logical signals are mapped to one physical
terminal.
– Check the I/O configuration.
Logic signal HI Byte: ModuleID
LO Byte: Terminal R = 0
Power ON Reset
185 An invalid logical signal is pending at the module.
The signal type does not match the configuration of
the module
– Check the I/O configuration.
Logical signal HI Byte: ModuleID
LO Byte: Terminal R = 0
Power ON Reset
186 - 200 Internal fault 0 0
– Reset fault
– If the fault still exists:
Send fault number and diagnostic code to the
technical support.
– Replace the device
201 Parasitic light fault
– Check parasitic light detection (outside door)
– Check flame sensor
– Check positioning of the flame sensor
– Check flame sensor cable for short circuits/broken
wire
– Check grounding of sensor cable
– Check spark igniter and pilot burner
– Check parameter 800 (FE1)
– Check fuel supply
– Check wiring
Internal
information 0 R = 0, 0, 0, 0