Water Quality Problems - SciCan Statim 2000 Technical Training Manual

1. Turn off the power; disconnect the sensor leads from the probe terminals J4-3 and J4-4.
2. Turn on the power and start an unwrapped cycle.
3. If a "Refill Reservoir Empty Waste Bottle" message appears on the LCD, proceed to step 4.
If the cycle starts when the sensor leads are disconnected, the PCB is bad.
4. Short the probe terminals J4-3 and J4-4. Start a cycle. If the unit displays a "Water Quality Is
Not Acceptable" message, proceed to step 5. If not the PCB is bad.
5. Remove the short from probe terminals J4-3 and J4-4. Short the float terminals J4-5 and J4-6.
If the cycle starts the PCB is good, the sensor is bad. If the display reads, "Water Quality Is
Not Acceptable" the PCB is bad.
6. To test the sensor, short the sensor posts using a long screwdriver. The sensor should read
less than 1 ohm.

Water Quality Problems

Note: Always Test Water First
Diagnosing Water Quality Sensor Problems
J4-6 J4-5 J4-4 J4-3
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