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Maintenance
MODEL GL-C Installation & Operation Manual Rev. 1.00 –2/23/06 Page 9
PROBLEM LIKELY CAUSE SOLUTION
Rinse solenoid valve will not
operate
Check coil
Check and install rebuild kit
Replace if necessary
Lack of pressure in rinse
spray tube
Rinse solenoid valve strainer
plugged
Remove screen and clean
Water continues to flow to
detergent tank or spray
tubes with machine off
Solenoid valve not sealing Clean seat
Install diaphragm kit
Replace valve
Thermostat setting low
Adjust thermostat
Thermostat defective
Replace
Defective float switch
Replace
Heater burnt out
Check and replace
Ensure water level is above
element
Water temperature low in
detergent tank
Incoming water temp. low
Hot water supply
min.140°F/60°C
Pump seal leaking Replace
Rinse drain in wash area plugged
Clear obstruction, clean
machine
Wash return screen in detergent
tank plugged
Clean
Drain screen under detergent
tank plugged
Clean
Main drain plugged Clean
Detergent tank covers are not
positioned properly causing
condensation
Position all top covers to
completely cover top of tank
Water on floor around
machine
Fill chute has lime build-up De-scale detergent tank
Dirty rinse tubes Clean
Chemical containers filling
with water
Worn flow washer in solenoid
valve
Replace
No product in containers Refill containers
Product gelling or crystallizing in
chemical line
Flush all lines with hot water
and use fresh supply of
chemical
Chemical supply strainer plugged
Clean with hot water
Speed adjustment set too low
Increase by turning clockwise
while machine is running/filling
No power to pump
Check LED signal
Chemicals not feeding
Pump motor defective
Replace pump motor