5. Faulty timer. After wash when drain should occur check voltage between blue/red and
red wires. If no voltage check wires and connectors for continuity, if okay, replace
timer.
Problem: Machine fills continuously, either when machine is off or on.
1. Faulty water solenoid valve.
a. First check that valve is installed correctly relative to flow direction (there is an arrow on the valve body which indicates
the direction of flow).
b. Valve is stuck in open position or damage has occurred to the diaphragm within the valve. Replace valve.
Problem: Dishmachine will not run with power switch in the "ON" position.
1. Check secondary voltage on control transformer. If no voltage, check voltage to primary. Voltage "yes" replace transformer
if no check circuit breaker for continuity if open reset. If it cannot be reset replace it.
2.Check power switch. With switch on, check for voltage between WHITE and RED wires. If no voltage, replace switch.
3.Check door switch. With the door open, check for voltage between the GREY and RED wires. If no voltage, replace the door
switch.
4. Check timer for blinking light on light bar. If there is no light, check voltage to J1-9 and J1-10. If there is no voltage check
wires and connector for continuity, if okay replace timer.
Problem: Dishmachine will not cycle with power switch in the "ON" position, works only in Delime Mode.
1. Check timer for blinking light on light bar. If there is no light, check voltage to J1-9 and J1-10. If there is no voltage check
wires and connector for continuity, if okay replace timer.
Problem: Dishmachine cycles continuously.
1. Dishmachine is in Delime Mode. Put the NORMAL/DELIME switch in the "NORMAL" position.
Problem: Dishmachine will not fill, though other functions work.
1. Y-strainer on incoming water line plugged or clogged. Remove strainer and clean out.
2. Water supply valve(s) turned off. Turn the valve(s) on.
3. Faulty solenoid valve diaphragm. Replace diaphragm, clean foreign material out of valve body and orifices.
4. Faulty solenoid coil. If the coil has voltage, replace the coil.
5. Faulty timer. During fill, measure the voltage between the BLUE and RED wires. If it reads 120 volts, timer is okay. If there
is no voltage check wires and connector for continuity, if okay replace timer.
Problem: Dishmachine fills continuously, even without power applied to the machine.
1. Solenoid valve dirty or faulty. Clean valve or replace faulty parts as required.
Problem: Dishmachine fills continuously, only when power is supplied to the machine.
1. Faulty fill switch. Check continuity of fill switch, if closed replace.
2. Faulty timer, check voltage between J3-5 and RED wire if always reads voltage replace timer.
Problem: The wash motor does not run, other functions work.
1. Loose wire connection to timer or contactor. Tighten wires as required.
2. Faulty wash relay. Check the voltage at the relay coil between the YELLOW and RED wires. If you read 120 volts and con-
tacts do not pull in, then the coil is faulty. Replace the wash relay.
3. Faulty timer. During wash check voltage between yellow and
red wires. If no voltage check wires and connectors for continuity, if okay, replace
timer.
ES-2000HT INTL Installation & Operation Manual 7610-003-24-90
Issued: 07-10-2006 Revised: N/A
SECTION 4: TROUBLESHOOTING
COMMON PROBLEMS
16
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