4
Hand Dryer
www.americanspecialties.com
Symptom
Corrective
Action
Diagnostics and Remedies
I
f the dryer will not run
First ensure that the breaker supplying the dryer is operational.
If it is, disconnect the power and remove the dryer cover.
Check for obstructions blocking the rotation of the blower and
clear any found. If it spins freely, check the motor and
thermostat for proper operation out of the unit. Replace any
failed items. Taking suitable precautions to avoid shock hazard,
reconnect the power and check for voltage at the terminal block.
If there is power and the dryer will not run, replace the circuit
board module (CBM) .
I
f the element gets hot but the fan
motor does not turn
Disconnect the power. Remove the dryer cover and check for
obstructions in the fan housing. Damaged fans must be
replaced. If there are no obstructions, replace the motor.
I
f the fan motor runs but the element
does not get hot
(Dryer blows cold air)
Disconnect the power and remove the dryer cover. Check for
loose or damaged wires. Remove the blower housing.
Check the element for signs of burning or breakage. Damaged
element must be replaced. If the element does not appear
damaged, disconnect it at the CBM and check element wire
continuity (see tech spec). An open circuit indicates damage to
the element wire and to the integral temperature limit control
(TLC). Separate the TLC and test for open circuit. If this is the
case, replace the element and/or the thermostat.
I
f the unit runs but makes a
buzz noise
Disconnect the power. Remove the dryer cover and check the
fan for obstructions and/or rubbing on the housing as it rotates.
Remove any obstructions and replace fan if the rubbing condition
exists.
06092857
Operating Instructions and Parts Manual
Surface-mounted Automatic hand dryer
I
f the dryer cycles by itself, or runs
all the time, or shuts off by itself
while in mid-cycle
Ensure that there is no obstruction on or in front of the
infra-red sensor. Clean any dirt off the sensor lens. Check for
voltage spikes on power line. If the problem persists, replace the
circuit board module (CBM).
