32
Pellerin Milnor Corporation
Check Temperature Probe
— The temperature probe detected a temperature below 32° F (0°
C) or above 230°F (110°C). The controller turns off all outputs, cancels the wash formula, and re-
turns to the
Home
display.
The Probe is Disconnected:
Electrical troubleshooting is required. Check for an open
circuit.
The Probe Malfunctioned:
If the probe connections are found good, disconnect the probe
and measure the resistance between the leads. The resistance between the leads should be
between 2K and 35K Ohms. The resistance between either lead and the ground should be
infinite.
Too Long to Fill
— The water in the machine did not reach the specified level within the con-
figured
Fill Error Time
. The controller closes all water valves and turns off all chemical injec-
tions. The
Fill Error
timer resets after you correct the error.
Fill Time Configured too Short:
Do a check of the configured fill time in your machine’s
configuration decisions. It may be necessary to increase the fill time.
Low Water Pressure:
Do a check of the water pressure and volume to the machine.
Water Valve Malfunctioned:
Use the electrical schematic manual to do a check of the
water valves and the circuits that control the valves.
Too Long to Steam
— The temperature in the machine did not reach the specified temperature
within the configured
Steam Error
time. The controller issues an error but the steam valve re-
mains open. If the temperature probe senses that the machine has reached its target temperature,
the error clears and the formula resumes.
Low Steam Pressure:
Do a check of the steam pressure from the boiler to the machine.
Steam Time Configured too Short:
Do a check of the configured steam time in your ma-
chine’s configuration decisions. This value represents the time required to apply steam to
cold water at high level to achieve the hottest temperature used.
Steam Valve Malfunctioned:
Use formula intervention to turn the steam valve on to con-
firm proper operation.
Too Long to Cool
— The temperature in the machine did not drop to the specified temperature
within the configured
Cooldown Error
time. The controller issues an error but continues to per-
form the cooldown. If the temperature probe senses that the machine has dropped to its target
temperature, the error clears and the formula resumes.
Cooldown Time Configured too Short:
Do a check of the configured cooldown time in
your machine’s configuration decisions. It may be necessary to increase the cooldown error
time.
Low Water Pressure:
Do a check of the cold water pressure and volume to the machine.
Cooldown Valve Malfunctioned:
Do a check of the cooldown valve for proper operation.
Temperature Circuit Malfunctioned:
Do a check of the temperature probe and the ana-
log-to-digital board for proper operation.
Summary of Contents for MilTouch MWB26Z
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