PROBLEM
POSSIBLE CAUSE
SOLUTION
The dryer does not work
and no LED lights are ON
No electricity supply
Check that 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
In other cases
Check whether any external object is blocking
the rotor
Make sure that ECU is feeding the motor and
no component is damaged
The dryer does not work
and the power light does
not change from green to
orange
The LED sensor is dirty
Make sure the LED sensor visor is completely
clean
The LED detectors are not
correctly wired
Check if the LED detectors are correctly
connected to the ECU
The ECU is damaged
Confirm if the ECU works properly, if not,
replace it.
The dryer does not work
and the power light
changes from green to
orange but the red LED is
ON
Faulty Installation
Check that all the wiring connectors to the
terminal are OK
Check that the equipment is correctly plugged
Make sure it has the proper power
The coal motor brushes
are over
Check if the coal motor brushes are well
assembled and in good condition, if not, replace
the motor
In other cases
Make sure that the ECU is feeding the motor
and no component is damaged
Check if the motor works properly and if any
component is damaged. If necessary, replace
the motor
The dryer does not work,
the power is orange and
the red LED is ON
The LED sensor is dirty
Make sure the LED sensor visor is completely
clean
The LED sensor detects
an alien object
Make sure no object triggers the LED sensors
The dryer starts
automatically
The LED sensor is dirty
Make sure the LED sensor visor is completely
clean
The dryer runs
continuously (non-stop)
The LED sensor is dirty
Make sure the LED sensor visor is completely
clean
In other cases
Make sure that the ECU is feeding the motor
and no component is damaged
The dryer runs on and off
The ECU
doesn’t work
properly
Make sure that ECU is feeding properly the
motor 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
The heating element is
damaged
Check the heating element and replace if
necessary
Hand dryer Troubleshooting Guide
Dualflow Plus
