Hand dryer Troubleshooting Guide
Speedflow Plus
ECU: Electronic Control Unit
These tasks must be performed by a qualified technician
The dryer does not work
No electricity supply
Check if the master switch has not been
triggered
Check that the equipment is correctly plugged
Make sure it has the proper power
Faulty installation
Check if all the wiring connections to the
terminal block are OK
The LED sensor is dirty
Make sure the LED sensor visor is completely
clean
Other possible causes
Check if the cover fits well with the base, is
fixed with the screws and does not interfere
with the detectors
Check the coal motor brushes condition and
make sure the motor is working properly
Check whether any external object is blocking
the rotor
Make sure that the ECU is feeding the motor
and no component is damaged
The dryer starts
automatically
The LED sensor is dirty
Make sure the LED sensor visor is completely
clean
Over-sensitivity
Adjust the detection distance in the ECU by
turning the potentiometer
Cover not properly fixed
Check if the cover fits neatly on the base, is
fixed with the screws and does not interfere
with the detectors. Note: to fix the cover to the
base, tighten the screws from within.
The dryer runs
continuously (non-stop)
Over-sensitivity
Adjust the detection distance in the ECU by
turning the potentiometer
The LED sensor is dirty
Make sure the LED sensor visor is completely
clean
Other possible causes
Make sure that the ECU is feeding the motor
and no component is damaged
Check if the cover fits neatly on the base fixed
with the screws and does not interfere with the
detectors. Note: to fix the cover to the base,
tighten the screws from within.
The dryer works on and off
The ECU does not work
properly
Make sure that the ECU is feeding the motor
properly and no component is damaged
Check if all the wiring connections are right
The dryer blows cold air
The heating element is
disconnected
Move the switch to connect the heating element
The internal temperature
exceeded the maximum
Wait for a couple of minutes and then restore
the thermal protection of the heating element
Damaged heating element
Check the heating element and replace it if
necessary
PROBLEM
POSSIBLE CAUSE
SOLUTION
