ASI 0144 Gebruiksaanwijzing - Pagina 4

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Hand Dryer

Diagnostics and Remedies

Symptom

If the dryer will not run

If the dryer cycles by itself, or runs

all the time, or shuts off by itself

while in mid-cycle

If the element gets hot but the fan

motor does not turn

If the unit runs but makes a

buzz noise

If the fan motor runs but the element

does not get hot

(Dryer blows cold air)

06092857

Operating Instructions and Parts Manual

Surface-mounted Automatic hand dryer

Corrective

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) .

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).

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.

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.

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.

Action