Electrolux EL4300 Service Manual page 37

Nozzle motor doesn't
start or
stop on active system
LED's on nozzle
doesn't light,
but nozzle motor is
running
EN Publication number
Cleaner with radio remote:
-
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 3.7.
Cleaner with active motor nozzle:
-
Check the bent end, test with another HBTN. If possible to change power
setting, 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 the power regulation works for the first minutes after start, and then stops
working. Motor seems to run only in maximum speed.
-
Check the cooling system to the Power module (tube, cooling house, tube
connection to dust compartment).
-
Change the Power module PCB.
-
Check the bent end, test with another HBTN. If possible to start nozzle
motor, 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.
-
Change nozzle electronic
Nr
Rev. xx Month/year
37
PR - 37/37