Hoshizaki HWR40A(-D), HUR96A(-D), HUR68A(-D), HUR40A(-D) Clogged Filter Sensor Malfunction Alarm E9

g. Clogged Filter Sensor Malfunction Alarm (E9)

If the input from the clogged filter sensor is below the clogged filter sensor open circuit detection point (equivalent to -7.6°F (-22°C)), "E9" is displayed. "E9" is also displayed when input from the clogged filter sensor is above the clogged filter sensor short circuit detection point (equivalent to 186.8°F (86°C)) for 10 minutes or more.

Note:

•If this alarm appears, first make sure that the sensor is properly connected.

•A short circuit can be detected immediately by turning on the power while pressing

the button. In this case, "E9" will be displayed immediately if a short circuit is detected.

Reset Options

The alarm automatically resets when one of the following conditions is met:

•The input from the clogged filter sensor exceeds the open circuit detection point (equivalent to -7.6°F (-22°C)).

•The input from the clogged filter sensor drops below the short circuit detection point (equivalent to 186.8°F (86°C)).

•A functioning clogged filter sensor (gray) is installed.

Possible Causes

• Trouble with the clogged filter sensor (gray).

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