English 5.906-432.0 Rev. 00 (06/15) 837.12 Testing the sensorFunction AdjustmentsLED indicator Important65 °C(50/42 °C)INPUTTESTUse this function to dis-play the status of the dif-ferent sensors.Every LED displays thestatus of a certain sensor.Therefore, several LEDscan be on at the sametime.Example:This display means:– Low oil sensor open(too little oil).– "ON" pressure switchnot actuated.– Thermal motor protec-tion switch closed.– Reed switch "fuel tank"closed (tank not emp-ty).– Reed switch "deter-gent tank 1" open(tank empty).– Reed switch "watershortage safeguard"closed.– "OFF" pressure switchnot actuated.– Exhaust gas thermo-stat open (burner off).– Reed switch "liquidsoftener tank" closed(float up).– Reed switch "deter-gent tank 2" open(float up).Lack of oil fuse closed (float up)."ON" pressure switch open (pressureswitch actuated)Thermal motor protection switch closedReed switch "fuel tank" closed (float up)Reed switch "detergent tank 1" open (floatup)Reed switch "water shortage safeguard"closed (water flow present)"OFF" pressure switch open (pressureswitch actuatedExhaust gas thermostat closedReed switch "liquid softener tank" closed(float up)Reed switch "detergent tank 2" open (floatup)