Rational iCombi Classic

2
Servicefehler: 72
A
Switch OFF the unit
Check plug connection PT1000 -> wire harness
Are all cables fixed in
the plug and in the socket?
(Test it by trying to pull each cable out of
plug pins)
Cool down the unit
Check the correct distance between the
temperature sensor PT1000 and the
heating (see MI_2086)
RESET eSTL
end
Fit the loose cable with your fingers in the pins
until it is locked (you can hear a soft click). Be
sure and check it by pulling it once again.
Switch on the unit
Problem solved?
Switch OFF the unit
Check the pins inside of the wire harness plug. Are the pins in the right
position?
endPut the pins in the correct position by bending with a tiny screw driver
1
2
3
A red LED (A or C) shows the error section (ST or HA and the error type.
Count the green LED flashes and watch when a red LED (A or C flashes additionally).
LED : steam generator LED C: Hot Air
A
B
C
A
B
C
A
B
C
A
B
C
Sensor diconnected
Sensor short circuit
Out of logic range
High temperature
yes
no
yes
no
pin
position
Incorrect pin position: Correct pin position: