Fisher & Paykel DishDrawer DS605 Diagnostic Service Manual page 24

599464
F3 Water Temperature Measurement Exceeds 85 Degrees Celsius
The water temperature is sensed at greater than 85 degrees C / 185 degrees
F.
The product will abort the wash program, log the fault, report to the user, and
disable the power supply.
Note: The isolation relay will be disabled. Power to the product will need to
be disconnected then reconnected for it to become fully functional again.
PRIMARY ACTION
- Check the incoming water temperature is not too hot.
- Check the temperature reading in diagnostics, and if 199, ensure the
power connector is properly fitted to the controller and the connector on
the heater plate is correctly fitted.
SECONDARY ACTION
- Check the resistance between pins 1 and 2 of the controller power
connector is about 10K at approx. 25
- If not (provided the harnesses are ok and the connectors are correctly
fitted), replace the heater plate (bad temperature sensor).
TERTIARY ACTION
- Check that the temperature reading in diagnostics is the same as the
temperature of the water in the tub. If the tub water temperature is
obviously below 85
o
C / 185 F, replace the controller.
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24
C / 77 F ambient room temperature.
o