22
restrictions in the tubing to the detergent dispenser, or in the
dispenser spray nozzle
•
Check incoming static water pressure. The valve will not
operate if pressure is greater than 100 psi. If greater than 100
psi, use alternate water source or install a pressure reducing
valve.
•
Check filter on Solenoid Valve for clogs
Apex2 Controller
Continuously feeds
Detergent
1.
Solenoid Valve malfunction; check valve
•
Disconnect machine power (disconnect power to the
controller)
•
If detergent continues to feed, repair/replace the solenoid
valve
2. Excessive wash tank dilution with fresh water
•
Check for faulty tank drain causing constant filling
•
Check for excessive rinse overflow to the wash tank
•
Check if detergent being diverted away from wash tank
Rinse Pump does not
activate
Rinse Lid Switch input is open, check lid position signal through
Apex2 controller menu
“Diagnostics & Troubleshooting- Rinse Lid
Position”
•
If lid position is open, Rinse Lid Switch input on I/O Board is
not jumpered; add jumper wire between terminals
2. Rinse Pump Motor not functioning; check motor using
“Diagnostics
& Troubleshooting – Dispense Tests – Rinse Pump Test”
•
If motor operates, check wiring and presence of the rinse
signal on the I/O board, and check rinse pump delay setting
•
If motor does not operate, check for DC voltage at rinse pump
terminals on I/O Board. During Rinse Pump Test, if voltage is
greater than 1 VDC, and if properly wired, replace motor. If
voltage less than 1 VDC, replace I/O Board
Apex2 Controller wash
temperature does not
match machine wash
temperature gauge
1.
Sample the wash tank and measure temperature with a calibrated
thermometer
•
If value matches controller, discuss replacing the wash tank
temperature gauge with the customer.
•
If value matches the machine gauge, replace detergent probe
Note – Ensure the probe is in a location that will provide an accurate
representation of the temperature of the wash tank.
NOTE - Differences of up to +/- 5 °F (3°C) between the Apex2 controller
reading and the dish machine guages are acceptable
Apex2 Controller rinse
temperature does not
match machine rinse
temperature gauge
Incorrect installation of Rinse Thermistor,
Pg. 8
2. Machine rinse temperature gauge failure; check machine rinse
gauge temperature. If it is thought to be faulty, discuss replacing
the gauge with the customer.
Note – Ensure the thermistor is in a location that will provide an accurate
representation of the temperature of the rinse water.
NOTE - Differences of up to +/- 5 Degrees F between the Apex2 controller
reading and the dish machine gauges are acceptable
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