9
SERVICE AND MAINTENANCE (CONTINUED)
SYMPTOMS
PROBABLE CAUSE
RECOMMENDED ACTION
An LED light flashes at
the base of the soap
dispenser twice every
2-3 seconds.
Low battery is out of power (lower
than 3.9 volts)
Replace the batteries and prime the
soap dispenser
No soap dispenses.
The sensor lens is dirty
Wipe the sensor lens with a clean,
dry, soft cloth
The sensor cable is disconnected
Reconnect the sensor cable
The tube (soap and air) is
disconnected
Reconnect the tube to the control box
No power supply or wrong
connection
Check the power supply connection
The soap pump is not primed after
refilling
Prime the pump
The dispensing tube/check valve is
blocked
Clean the dispensing tube/check valve
with warm water
Insufficient amount of
soap dispensed.
The nozzle is clogged
Remove the nozzle and foaming
assembly. Clean with warm water
The check valve is clogged
Remove the check valve from
dispensing tube. Clean with warm water
The soap pump is not working
correctly
Order and install a new soap pump
Only air bubbles are
dispensing.
The soap pump outlet is clogged
Remove the soap pump tubing
The soap pump is leaking
Order and install a new soap pump
No foam is dispensing.
Only liquid soap is
dispensing.
The air pump is disconnected
Check the air pump connection and
reconnect the tube to the control box
The air pump/tube is clogged
Remove the air pump tubing. Clean the
air pump outlet with warm water
The air pump is not working
Order and install a new air pump
Troubleshooting
