Testing The Sensor - Kärcher HDS 7/12 M Service Manual

7.12 Testing the sensor

Function
65 °C INPUTTEST
(50/42 °C) Use this function to dis-
play the status of the dif-
ferent sensors.
Every LED displays the
status of a certain sensor.
Therefore, several LEDs
can be on at the same
time.
Example:
This display means:
Low oil sensor open
–
(too little oil).
"ON" pressure switch
–
not 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 "water
–
shortage safeguard"
closed.
"OFF" pressure switch
–
not actuated.
Exhaust gas thermo-
–
stat open (burner off).
Reed switch "liquid
–
softener tank" closed
(float up).
Reed switch "deter-
–
gent tank 2" open
(float up).
Adjustments
LED indicator Important
Lack of oil fuse closed (float up).
"ON" pressure switch open (pressure
switch actuated)
Thermal motor protection switch closed
Reed switch "fuel tank" closed (float up)
Reed switch "detergent tank 1" open (float
up)
Reed switch "water shortage safeguard"
closed (water flow present)
"OFF" pressure switch open (pressure
switch actuated
Exhaust gas thermostat closed
Reed switch "liquid softener tank" closed
(float up)
Reed switch "detergent tank 2" open (float
up)
English 5.906-432.0 Rev. 00 (06/15)
83