256
9 Faults
No. Description D1 D2 Extra
212 Invalid signal of the safety interlock chain system
Safety interlock chain is interrupted
– Check contacts and wiring of safety interlock chain
Internal
information
Fuel train R = 0, 0, 0, 0
Reset
213 Invalid signal of the safety interlock chain fuel
Safety interlock chain is interrupted
– Check contacts and wiring of safety interlock chain
Internal
information
Fuel train R = 0, 0, 0, 0
Reset
215 Gas pressure too low
– Check gas pressure
– Check gas pressure switch
– Is fuel available?
Internal
information
Fuel train R = 0, 3, 0, 0
Reset
216 Air pressure is missing
– Check air pressure switch
– Check fan
Internal
information
Fuel train R = 0, 0, 0, 0
Reset
218 Invalid signals from the pilot valve.
– Reset fault
– If the fault still exists:
Send fault number and diagnostic code to the
technical support.
– Replace the device
Internal
Information
0 R = 0, 0, 0, 0
219 Invalid signals from the fuel valve 1
– Reset fault
– If the fault still exists:
Send fault number and diagnostic code to the
technical support.
– Replace the device
Internal
information
0 R = 0, 0, 0, 0
220 Invalid readback values of the fuel valve 2.
– Reset fault
– If the fault still exists:
Send fault number and diagnostic code to the
technical support.
– Replace the device
Internal
information
0 R = 0, 0, 0, 0
221 Invalid signals from the spark igniter
– Reset fault
– If the fault still exists:
Send fault number and diagnostic code to the
technical support.
– Replace the device
Internal
information
0 R = 0, 0, 0, 0
225 The flame signal is missing during the 1
st
safety time.
– Check ignition point
– Check spark igniter and pilot burner
– Check flame sensor
– Check flame stability
– Check positioning of the flame sensor
– Check fuel valves
– Check fuel supply
– Check stability of the fuel pressure
– Check grounding of sensor cable
– Check flame sensor cable for short circuits/broken
wire
– Check wiring
– Check parameter 302, 303 and 800
0 0 R = 3, 3, 3, 3
Reset