Ecolab Apex2 User Manual

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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
1.
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
1.
Incorrect installation of Rinse Thermistor,
see installation section
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

Ecolab Apex2 Specifications

General

Brand	Ecolab
Model	Apex2
Category	Control Systems
Language	English