Trouble Shooting - Electrolux EL4300 Service Manual

8 TROUBLE SHOOTING

Problem
Cleaner doesn't start;
standby is indicated on
display
Cleaner doesn't start;
no indication on
display
Cleaner doesn't start;
display shows normal
running mode
Not possible to change
power level
EN Publication number
Cleaner without remote:
-
Investigate if the plastic knob reaches the ON/OFF switch on the PCB.
-
Replace the control unit
-
Check connection to the ON/OFF switch board
Cleaner with radio remote:
- Investigate if both ON/OFF (cleaner and remote) are non-functional.
If remote ON/OFF working, but not cleaner ON/OFF:
-
Investigate if the plastic knob reaches the ON/OFF switch on the PCB.
-
Replace the control unit (display PCB).
If cleaner ON/OFF working, but not remote ON/OFF:
-
Investigate if the LED on the remote indicates transmission. If not, change
battery and try again.
-
If still no LED indication on remote, change remote control and reprogram
the cleaner according to above instruction.
-
If LED indicates transmission, try replacing the remote according to above
instruction. If cleaner starts, replace the RF remote control.
-
If still no function, replace the control unit in the cleaner. Be aware of the
position of the radio antenna. If replacing the control unit this has to learn
the RF-remote address according to above description, chapter
If no reaction on any ON/OFF buttons: replace the control unit (display PCB).
Cleaner with active motor nozzle:
-
Investigate if both ON/OFF (cleaner and remote) are non-functional..
If remote ON/OFF working, but not cleaner ON/OFF:
-
Investigate if the plastic knob reaches the ON/OFF switch on the PCB.
-
Replace the control unit (display PCB).
If cleaner ON/OFF working, but not remote ON/OFF:
-
Check the bent end, test with another HBTN. If the cleaner starts, change.
-
Check wiring from hose connection to 2G active PCB.
-
Change 2G active PCB, test.
-
Check wiring between 2G active PCB and control unit for failure or bad
connection.
-
Change the control unit.
If no reaction on any ON/OFF buttons: replace the control unit (display PCB).
-
Check if the Power module PCB gets main voltage.
-
Check communication wire between Power module and control unit for
failure or bad connection.
-
Change the control unit.
-
Change the Power module.
-
Check wire connection from CW.
-
Check motor voltage, if no voltage, check the electronics as below, else
check motor TCO and motor.
-
Check communication wire between Power module and control unit for
failure or bad connection.
-
Change the control unit.
-
Change the Power module.
Cleaner without remote:
Investigate if the plastic knob reaches the slider on the potentiometer on the
PCB.
Replace the control unit (display PCB).
Nr
Checks
Rev. xx Month/year
36
3.7.
PR - 36/37