18
SYMPTOM
POSSIBLE CAUSE
ACTION
Timer faulty (M)
Verify the programmer is rotating (M1,
M2, M3, and M4 & M5). If not, check to
see that the motor is receiving power. If
so, replace the programmer assembly.
Ohm out timer motor leads.
Operating t-stat faulty (Tc) Verify position change if temperature has
been met. Opening circuit to tank relay
and closing thermo relay.
Faulty thermo relay (R)
Verify thermo-relay is not energized and
(pk/pk) from m1 to timer run motor is
closed
Faulty rinse valve (V)
Verify the wiring and voltage received; if
correct, ohm out. If open replace valve.
Dishwasher RUNS
continuously in the wash
cycle or not rinsing.
No water to machine.
Verify hose is not blocked or kinked,
water valve is open and pressure > 20
PSI.
Clogged or obstructed
rinse arms
Remove and clean rinse arms/nozzles.
Poor water pressure
Verify the inlet water pressure is at a min
of 15 psi and max 25 psi.
Hose strainer is clogged
Check strainer or any filters installed.
Dishwasher FILLS
slowly and/or rinse is
weak.
Bad fill valve (V)
Valve can be clogged or lazy, causing
poor flow.
Temperature gauge in
front panel is defective.
Check temperature with a calibrated
thermometer. Replace temperature gauge
if necessary.
Misadjusted/faulty
thermostat (Tc)
Verify operation and setting of
thermostat; replace if necessary. If
thermostat is not receiving voltage, check
wiring or replace selector switch (IG)
Faulty high limit stat (Tl)
Reset thermostat, depressing red button.
Replace if necessary.
Faulty heater relay (Cc)
Ohm out booster relay, closed when
solenoid receiving voltage. If not replace.
Rinse heater (Rc) faulty
Ohm out element check for continuity; if
open, replace heater.
Dishwasher RUNS.
RINSE WATER NOT
REACHING
REQUIRED
TEMPERATURE.
Bad selector switch (IG)
Verify voltage between positions (6/6a)
(Pk/r); replace if no voltage.
Wrong incoming water
and pressure going to the
machine.
Check out that incoming water
temperature and pressure are the
optimums indicated on the data plate.
Faulty operation t-stat (Tc) Verify position change to tank t-stat (Tt);
replace if necessary.
Dishwashing machine
RUNS. WASH WATER
NOT REACHING
REQUIRED
TEMPERATURE.
(Continue next page)
Misadjusted/faulty
thermostat (Tt)
Verify voltage to t-stat and position
change from booster to tank.
